Subject Guides: Patent and Trademark Resource Center: U.S. Trademarks

Resources for Finding Trademarks

Search Tools

Seven-step U.S. trademark search strategy
TESS (Trademark Electronic Search System)
Search the USPTO's database of registered trademarks and prior pending applications.
International Classification of Goods and Services
Use this list to identify the International Classification of Goods and Services codes based upon the goods or services on which a mark is used. Useful for both searching marks and registering marks.
Trademark Design Code Search
Use this to identify design codes for logo designs. It is the only way to search for non-textual graphical elements commonly found in trademarks. Essential when searching for marks that do not include text.

Additional Online Resources

Protecting Your Trademark: Enhancing Your Rights Through Federal Registration
Guide to the International Registration of Marks under the Madrid Agreement and the Madrid Protocol
This Guide is primarily intended for applicants for, and holders of, international registrations of marks, as well as officials of the competent administrations of the member States of the Madrid Union.
Trademark Official Gazette
The Trademark Official Gazette (TMOG) is published each Tuesday and contains descriptive information and a representative drawing for each mark published, along with a list of cancelled and renewed registrations.
Trademark Searching Tools and Strategies: Questions for the New Millenium
University of New Hampshire law school paper discusses and raises questions about trademark
searching. Published 2006.

Searching for Maine Trademarks

Corporate Name Search
Unfortunately, Maine does not have a searchable trademark database. Registered Maine trademarks can be found in the Corporate Name Search Database if the registrant's name (or a part of its name) is known. Remember, registration is optional; not all trademarks belonging to Maine companies will be found in the database.
Maine Marks Information
This information outlines the options available for registering a mark with the State of Maine's Secretary of State.

Additional Trademark Videos
Provided by the USPTO

The Trademark Assistance Center (TAC) is the main support center for all customers, from first-time filers to legal professionals and experienced trademark applicants. They can answer your questions on a variety of trademark topics.

Contact TAC for:

General information about registering a trademark
Trademark literature and publications
Updates on the status of trademark applications and registrations
Answers to case-specific questions about an application or registration
Help navigating electronic forms and systems
Help finding information on our website about the meaning of trademark terms and concepts, how to start the application process, application and registration timelines, and more.

TAC cannot give legal advice. This includes:

Advising applicants on proper responses to USPTO office actions
Conducting pre-filing searches for potentially conflicting trademarks
Analyzing or pre-approving documents before filing
Advising applicants on substantive examination issues, such as the acceptability of specimens and classification of goods and services.

Hours

Type of assistance	Hours and contact information
Contact center	Monday-Friday, 8:30 a.m. to 8 p.m. ET Toll free: 1-800-786-9199 (press 1) Local: 571-272-9250 (press 0) International: 1-571-272-9250 (press 0)
Email	TrademarkAssistanceCenter@uspto.gov

Type of assistance

Hours and contact information

Contact center

Monday-Friday, 8:30 a.m. to 8 p.m. ET

Toll free: 1-800-786-9199 (press 1)

Local: 571-272-9250 (press 0)

International: 1-571-272-9250 (press 0)

Email

TrademarkAssistanceCenter@uspto.gov