Complete Specification Filing in Surendranagar

Local jurisdiction

Registrar (RoC)

RoC Ahmedabad — ROC Bhavan, Opposite Rupal Park Society, Behind Ankur Bus Stop, Naranpura, Ahmedabad – 380013

Jurisdictional HC

Gujarat High Court

GSTIN prefix

24 (Gujarat)

Professional Tax

Gujarat levies Professional Tax (max ₹2,400/year), collected by the local municipal corporation.

Business hubs

Cotton Ginning Cluster, Salt Belt, GIDC

Surendranagar is a Saurashtra cotton-ginning and salt-production hub.

Also in: Ahmedabad Rajkot

A complete specification is the full technical disclosure of an invention, filed on Form 2 (complete) under the Patents Act, 1970. It sets out the field, background, detailed description, drawings and — decisively — the claims that define the legal boundary of protection. You can file it directly, or within 12 months of a provisional specification; otherwise the provisional application is deemed abandoned. Because the complete specification is the document the Indian Patent Office (CGPDTM) examines for grant, well-drafted claims are the single most important part of the filing.

12 mo

Provisional windowIf a provisional specification was filed first, the complete specification must be filed within 12 months, or the application is deemed abandoned.

Understand It

What Is Complete Specification Filing?

A quick, plain-language explanation before the details.

In simple terms

A complete specification is the detailed patent document that fully describes how your invention works and sets out the claims — the exact legal boundaries of what you are protecting.

Legally

Under the Patents Act, 1970, a complete specification (filed on Form 2) must fully and particularly describe the invention and its operation, disclose the best method of performing it, and end with claims defining the scope of the invention for which protection is sought. It is the specification examined by the Controller before grant.

Governing authority

Administered by the Office of the Controller General of Patents, Designs & Trade Marks (CGPDTM) through the Indian Patent Office, via the e-filing portal at ipindia.gov.in.

Validity

Once the application proceeds to grant on the strength of the complete specification, the patent is protected for 20 years from the date of filing, subject to annual renewal (annuity) fees.

Service Intelligence

Quick Facts

Professional Fee

Custom quote

Governing Law

Patents Act 1970

Key Form

Form 2 (complete)

Defines Scope

The claims

Filing Window

Within 12 months

Mode

100% Online

Authority

CGPDTM / IPO

Examined

On request (Form 18)

Legal & Regulatory Framework

Act

Patents Act, 1970

Rules

Patents Rules, 2003

Key Forms

2 & 5

Authority

CGPDTM / IPO

Portal

ipindia.gov.in

Last Reviewed

17 Aug 2026

Before You Start

Is This Service Right for You?

Ideal for

Inventors ready to fully disclose and claim their invention
Applicants converting a provisional into a complete specification
Startups filing a complete specification directly for full protection
R&D teams with a finalised, working invention
Companies seeking the widest defensible claim scope
Founders preparing to license or commercialise a technology

You may need this if

You filed a provisional and the 12-month window is running
Your invention is finalised and ready for full disclosure
You want claims that define and defend your protection scope
You are filing directly without a prior provisional
You need the document that the IPO will examine for grant
You want a specification drafted to survive examination

Not sure if you need this?

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Why It Matters

Why the Complete Specification Matters

The complete specification is the heart of a patent — it defines what you own and is the document examined for grant. Here is why careful drafting is critical.

01

Claims Define Your Scope

The claims at the end of the complete specification set the exact legal boundary of protection. Well-drafted claims are the single most important part of a patent — too narrow and rivals design around you, too broad and they fail examination.
02

Full Technical Disclosure

It must describe the field, background, detailed working and the best method of performing the invention — with drawings — so a skilled person can reproduce it. Insufficient disclosure can sink the application.
03

Locks In From the Provisional

If a provisional was filed, the complete specification carries forward your early priority date — provided it is filed within the 12-month window and stays within the scope first disclosed.
04

The Examined Document

When you request examination, the Controller examines the complete specification and its claims for novelty, inventive step and clarity. Strong drafting means fewer objections in the First Examination Report.
05

Foundation of a Business Asset

The scope granted flows directly from these claims. A well-drafted complete specification produces a stronger, more valuable patent to license, assign or enforce.
06

Basis for Global Filing

The complete specification you file in India forms the basis for foreign filings via the PCT or Convention route within the prescribed window.

Transparent

Simple, Transparent Pricing

Custom quote for your case

Fees depend on your business type and scope. Get a clear, itemised quote upfront — no hidden professional charges, government fee billed at actuals.

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Eligibility

Who Can Apply?

Individual inventors

Startups & companies

Co-inventors & joint applicants

Research institutions & universities

Applicants converting a provisional

Assignees of an invention

Eligibility checklist

A finalised invention ready for full technical disclosure
The invention is novel, involves an inventive step and is industrially applicable
It does not fall within the non-patentable categories under Sections 3 and 4
A clear description and drawings sufficient for a skilled person to work it
If converting, a provisional was filed within the last 12 months
The applicant is the true inventor, an assignee, or a legal representative

End-to-End

Everything You Need. One Professional Team.

01

Invention Review

Understand the invention in full and map out the inventive concept before drafting.

02

Provisional Check

Where a provisional was filed, confirm the 12-month window and align the complete specification with it.

03

Description Drafting

Draft the field, background, summary and detailed description with the best method of working.

04

Drawings & Figures

Prepare formal drawings, diagrams and figure references that support the disclosure.

05

Claim Drafting

Draft independent and dependent claims for the widest defensible scope of protection.

06

Form Preparation

Prepare Form 2 (complete specification) with the abstract, and Form 5 (declaration of inventorship).

07

E-Filing

File the complete specification on the IPO e-filing portal and secure the acknowledgement.

08

Handover

Provide the filed specification, claims and filing acknowledgement, and advise on examination next steps.

No Ambiguity

What You’ll Receive

Drafted complete specification (Form 2)

Field, background & detailed description

Independent & dependent claims

Abstract of the invention

Formal drawings & figure references

Form 5 declaration of inventorship

Filing acknowledgement (number & date)

Guidance on the examination request (Form 18)

Checklist

What Is Required for a Complete Specification Filing?

The core input is a full technical disclosure of the invention. Requirements also depend on the applicant type and whether you are converting a provisional or filing directly. Keep clear scans (PDF) and drawings ready — everything is collected securely online.

Choose a document group

Inventor / Applicant

For each inventor & applicant

4 documents

Full name, address & nationality of every inventor
Identity proof of the applicant
Applicant type — individual, startup, small entity or others (affects fee)
Startup / MSME certificate (if claiming reduced fee)

Claims decide your scope

The claims define the legal boundary of protection and are the most-examined part of the specification. Well-drafted claims are the single most important element — we draft them carefully.

Mind the 12-month window

If you filed a provisional, the complete specification must be filed within 12 months, or the application is deemed abandoned. You can also file the complete specification directly.

Disclose fully, disclose the best method

The specification must fully and particularly describe the invention and the best method of performing it, with drawings — enough for a skilled person to reproduce it.

File before you disclose

File before any public disclosure — publishing, demoing or selling the invention first can destroy novelty and make it unpatentable.

Don’t have all the documents?

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Step by Step

How Complete Specification Filing Works (Step by Step)

The complete specification is drafted and filed online through the Indian Patent Office e-filing portal at ipindia.gov.in.

01

Invention review & strategy

We study the invention and, where a provisional exists, confirm the 12-month window and the scope already disclosed.

02

Draft the description & drawings

Prepare the field, background, summary, detailed description and best method, supported by formal drawings.

03

Draft the claims

Draft independent and dependent claims defining the widest defensible scope, plus the abstract.

04

Review & finalise

You review the draft specification and claims; we refine until the disclosure and scope are right.

05

File Form 2 (complete) & Form 5

File the complete specification (Form 2) with the declaration of inventorship (Form 5) on the IPO e-filing portal.

06

Acknowledgement & next steps

Receive the filing acknowledgement and guidance on requesting examination via Form 18 within the statutory period.

How Long It Takes

How Long Does Complete Specification Filing Take?

Stage	Expected Time
Invention review & drafting the specification and claims	Depends on complexity
Client review and finalisation of the draft	With your inputs
Filing acknowledgement (number & date)	On filing
Examination on request, FER response & grant	Varies with IPO workload

Drafting time depends on the complexity of the invention and how quickly disclosure and drawings are provided. If converting from a provisional, the complete specification must be filed within 12 months. After filing, examination happens only on a request via Form 18, and overall grant time depends on the IPO examination queue and how quickly objections are resolved.

Compliance Calendar

Key Dates — At a Glance

Frequency	What Is Due
After Filing	Receive the filing acknowledgement and number · Publication in the official journal follows in due course · Request early publication (Form 9), if needed
Examination Stage	File the request for examination (Form 18) in time · Respond to the First Examination Report (FER) · Attend a hearing if the Controller requires one
Foreign Filing	Consider PCT / Convention filing to protect abroad · Use the Indian filing date as your priority date · File within the prescribed window
After Grant	Pay annual renewal (annuity) fees to keep the patent in force · Maintain the patent for up to 20 years from filing · Record any assignment or licence with the IPO

Dates are indicative and may change with government notifications. Our team tracks every deadline so you never miss a filing.

Why Outsource

Doing It Yourself vs TaxClue

Doing It Yourself

Draft a full, enabling description and the best method of working
Draft independent and dependent claims for defensible scope
Prepare formal drawings and figure references
Align the complete specification with an earlier provisional
Track the 12-month conversion window accurately
Prepare Form 2 (complete) and Form 5 and e-file correctly
Risk narrow claims, insufficient disclosure or abandonment

With TaxClue

Full enabling disclosure drafted by experts
Claims drafted for the widest defensible scope
Formal drawings and abstract prepared for you
Complete specification aligned with your provisional
The 12-month window tracked proactively
Form 2 & Form 5 prepared and e-filed accurately
A stronger specification going into examination

Skip the guesswork.

Let an expert handle it →

Avoid Delays

Common Mistakes That Delay Your Application

Weak or overly narrow claims that are easy to design around

Insufficient disclosure — failing to describe the best method

Claims that stray beyond what the provisional disclosed

Missing the 12-month window to file the complete specification

Poor or missing drawings that fail to support the claims

Publicly disclosing the invention before filing (destroys novelty)

Filing under the wrong applicant type and overpaying official fees

Forgetting to request examination (Form 18) after filing

TaxClue reviews your documents before filing to reduce avoidable errors.

Stay Compliant

What Happens After the Complete Specification Is Filed?

After Filing

Receive the filing acknowledgement and number
Publication in the official journal follows in due course
Request early publication (Form 9), if needed

Examination Stage

File the request for examination (Form 18) in time
Respond to the First Examination Report (FER)
Attend a hearing if the Controller requires one

Foreign Filing

Consider PCT / Convention filing to protect abroad
Use the Indian filing date as your priority date
File within the prescribed window

After Grant

Pay annual renewal (annuity) fees to keep the patent in force
Maintain the patent for up to 20 years from filing
Record any assignment or licence with the IPO

Risk Assessment

Penalties & Consequences

What is at stake if you do not comply

If the complete specification is not filed within 12 months of the provisional, priority is lost and the application lapses
Claims that go beyond the provisional disclosure cannot claim the earlier priority date
Weak or overly narrow claims leave the invention easy to design around
If the request for examination (Form 18) is not filed within 31 months, the application is deemed withdrawn

Latest Updates

Regulatory Updates 2025–26

2024: The Patents (Amendment) Rules 2024 reduced the Request for Examination window to 31 months and give a discount for renewal fees paid in advance for four or more years.
2025: Patent applications, examination responses and renewals are filed online on the IP India portal (ipindia.gov.in).

The Difference

Why Businesses Choose TaxClue

01

IP-Focused Drafting

Complete specifications and claims drafted by professionals who work on inventions every day.

02

Strong Claims

Independent and dependent claims drafted for the widest defensible scope of protection.

03

End-to-End

From disclosure to filing acknowledgement — fully managed, minimal effort from you.

04

100% Online

Everything over WhatsApp / email — no office visits required.

05

Transparent Fees

A clear quote upfront — official fees billed at actuals, no hidden professional charges.

06

Confidential

Your invention is handled under strict confidentiality throughout.

Data Care

Your Documents Deserve Professional Care

Invention details handled by professionals under strict confidentiality
Access limited to the team working on your file
Communication over secure digital channels
Documents retained only as long as needed for prosecution

Answers

Frequently Asked Questions

What is a complete specification?

A complete specification is the full patent document, filed on Form 2, that fully and particularly describes the invention and how it works, discloses the best method of performing it, includes drawings where needed, and ends with claims that define the legal scope of protection. It is the document the Indian Patent Office examines before deciding to grant a patent.

What is the difference between a provisional and a complete specification?

A provisional specification describes the invention in general terms and secures an early priority date, buying you up to 12 months. A complete specification is the full disclosure with detailed claims that define the exact scope of protection. If you file a provisional first, you must file the complete specification within 12 months, or the application is deemed abandoned. You can also file a complete specification directly.

What must a complete specification contain?

It should set out the title, the field of the invention, the background, a summary, a detailed description with the best method of performing the invention, drawings where needed, an abstract, and — most importantly — the claims. The claims define the legal boundary of the protection sought and are the most closely examined part of the specification.

Why are the claims so important?

The claims define exactly what your patent protects. Everything inside the claims is protected; everything outside is not. Claims that are too narrow are easy to design around, while claims that are too broad may be rejected during examination for lack of novelty or inventive step. Careful claim drafting is the single most important part of a complete specification.

Can I file a complete specification directly without a provisional?

Yes. You can file a complete specification directly if your invention is finalised and ready for full disclosure. Filing a provisional first is optional — it is useful mainly to secure an early priority date while you continue to develop the invention.

What is the deadline to file a complete specification after a provisional?

If you filed a provisional specification, you must file the complete specification within 12 months of the provisional filing date. If you miss this window, the provisional application is deemed abandoned and you lose the priority date it secured.

Which forms are used for a complete specification?

The complete specification is filed on Form 2 (marked as a complete specification). It is accompanied by Form 5, the declaration as to inventorship, which is required with a complete specification. Form 1 is the application for grant, and Form 18 is used later to request examination.

Is the complete specification examined?

Yes — it is the document that is examined. Examination happens only after you file a request for examination using Form 18 within the statutory period. The examiner then reviews the complete specification and its claims for novelty, inventive step, clarity and patentable subject matter, and issues a First Examination Report (FER).

What happens if my disclosure is incomplete?

A complete specification must disclose the invention fully and describe the best method of performing it, so that a person skilled in the field could reproduce it. If the disclosure is insufficient, the application can face objections during examination or, later, a challenge to the patent. This is why the detailed description and drawings must be prepared carefully.

Can the claims go beyond what the provisional disclosed?

The complete specification should stay within the scope of what the provisional disclosed to retain the earlier priority date. Matter that was not disclosed in the provisional may not get the benefit of the earlier date. We draft the complete specification to align with your provisional while capturing the widest defensible scope.

How long does a granted patent last?

Once the application proceeds to grant on the strength of the complete specification, the patent is protected for 20 years from the date of filing, subject to payment of annual renewal (annuity) fees to keep it in force.

What happens after I file the complete specification?

After filing, you receive an acknowledgement with the application number and date. The application is published in the official journal in due course, and you must file a request for examination (Form 18) within the statutory period. The examiner then issues a First Examination Report, which you respond to before the patent can be granted.

How long do I have to file the complete specification after a provisional?

You have 12 months from the date of the provisional filing to file the complete specification, under Section 9 of the Patents Act, 1970. This deadline is strict — if you miss it, the provisional application is deemed abandoned and the priority date it secured is lost. If you never filed a provisional, you file the complete specification directly with no such window.

How much does complete specification drafting and filing cost?

The cost has two components — the government (official) filing fee and the professional fee for drafting the specification, claims, abstract and drawings. The official fee is substantially lower for natural persons, recognised startups and small entities than for large companies, and excess-claim or excess-page fees may apply. We quote the professional fee upfront and bill official fees at actuals.

How many claims can a complete specification have?

There is no hard cap, but the IPO charges an additional official fee for each claim beyond a set number (and for each page beyond a set length). More importantly, every claim should be justified by the disclosure and add value to your protection — we draft a focused set of independent and dependent claims for the widest defensible scope without unnecessary excess-claim fees.

Can I amend the complete specification after filing?

Yes, amendments are allowed — commonly during examination in response to the First Examination Report — but they must stay within the scope of what was originally disclosed. You cannot add new matter that was not in the specification as filed. Careful drafting at filing stage reduces the need for scope-narrowing amendments later.

What is the difference between a divisional and a complete specification?

A complete specification is the full disclosure of one invention (or a group forming a single inventive concept). If it discloses more than one distinct invention, or the examiner raises a unity-of-invention objection, you can file a divisional application carving out the separate invention, which is then prosecuted with its own complete specification while retaining the original filing date.

Do I need a patent agent to draft the complete specification?

A registered patent agent is required for foreign applicants and is strongly advisable for everyone, because the complete specification — especially the claims — is a technical and legal document that determines your entire scope of protection and is the exact document the examiner scrutinises. Poor drafting can permanently narrow or invalidate protection, so we handle it end-to-end under a power of authority (Form 26).

Verify Everything

Official Sources & Legal References

Every legal detail on this page — the forms, the 12-month window and the patent term — is drawn from primary law and official government sources. Verify them directly:

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Expert-drafted complete specification filing — full technical disclosure, formal drawings and legally-drafted claims that define your scope of protection, filed as Form 2 with the IPO. Free consultation, custom quote, zero hidden charges.

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