Complete Trademark Filing Guide in Kolkata 2026

Understanding Trademarks in India

A trademark is a distinctive sign (word, logo, symbol, design, or combination) that identifies and distinguishes the goods or services of one business from others. Trademarks in India are governed by the Trade Marks Act, 1999 and the Trade Marks Rules, 2017. The Trademark Registry in Kolkata is one of the five trademark offices in India, located at 9th Floor, CGO Building, 2, CJ Road, Kolkata. Registration of a trademark provides the owner with exclusive rights to use the mark, legal protection against infringement, and the ability to license or assign the mark. A registered trademark is valid for 10 years and can be renewed indefinitely.

Types of Trademarks That Can Be Registered

The following types of marks can be registered as trademarks: Word marks (brand names, business names, product names). Logo marks (graphic designs, symbols, devices). Combined marks (words and logos together). Service marks (trademarks for services). Collective marks (marks used by a group or association). Certification marks (marks certifying quality or standards). Shape marks (distinctive product shapes). Sound marks (audio jingles or tunes). Pattern marks (distinctive patterns). Color marks (distinctive color combinations). Three-dimensional marks (distinctive product packaging). The mark must be distinctive, not descriptive, and should not be identical or similar to existing registered marks.

Trademark Classification System (Nice Classification)

Trademarks are classified into 45 classes under the Nice Classification system: Classes 1-34 cover goods (Class 1: Chemicals, Class 3: Cosmetics, Class 5: Pharmaceuticals, Class 9: Electronics, Class 25: Clothing, Class 30: Food items, etc.). Classes 35-45 cover services (Class 35: Business management and advertising, Class 36: Insurance and finance, Class 37: Building and repair services, Class 41: Education and entertainment, Class 42: IT services and software, Class 43: Food and accommodation services, etc.). When filing a trademark application, you must specify the class or classes under which your goods or services fall. A single application can cover multiple classes with additional fees.

Step-by-Step Trademark Registration Process in Kolkata

Step 1: Conduct a trademark search at the Trademark Registry website to ensure the mark is available. Step 2: File the trademark application online through the IP India portal or physically at the Kolkata Trademark Registry. Step 3: Pay the application fee (government fee + professional fee). Step 4: The Trademark Registry examines the application and issues an Examination Report. Step 5: Respond to the Examination Report within 30 days (if any objections are raised). Step 6: If accepted, the trademark is published in the Trade Marks Journal (for 4 months). Step 7: If no opposition is filed within 4 months, the trademark proceeds to registration. Step 8: The Certificate of Registration is issued. Step 9: The trademark is valid for 10 years from the date of registration.

Documents Required for Trademark Filing

Essential documents include: Applicant's details (name, address, nationality, and nature of business). Soft copy of the trademark (logo or word mark). List of goods or services with class numbers. Date of first use of the mark (if already in use). Power of Attorney (Form-48) authorizing the trademark agent or lawyer. Proof of claim to proprietorship (if applicable). User affidavit if the mark is claimed as 'proposed to be used' or 'already in use'. Priority document (if claiming priority from an earlier application in another country). For foreign applicants: proof of residence or business address in India.

Trademark Opposition and Infringement Remedies

After publication in the Trademarks Journal, any person can file an opposition within 4 months. The opposition process includes: Filing of notice of opposition, filing of counter-statement by the applicant, evidence submission by both parties, and hearing before the Registrar. If the opponent succeeds, the trademark application is refused. If the applicant succeeds, the trademark proceeds to registration. For infringement of a registered trademark, the owner can: File a civil suit for infringement before the District Court or High Court. Obtain an injunction restraining the infringer from using the mark. Claim damages or an account of profits. Seek delivery up and destruction of infringing goods. File a criminal complaint for trademark counterfeiting.