A nationwide network of public, state and academic libraries
Located in Alexandria, VA provides the public access to patent and trademark information in a variety of formats. Trained staff are available to assist public users
Former examiners are available to answer general patent questions
The Trademark Assistance Center (TAC) provides general information about the trademark registration process and responds to inquiries about the status of trademark applications and registrations.
The Patent Electronic Business Center (EBC) assists customers with filing their electronic patent application submissions via the Electronic Filing System (EFS-Web) and with the review of patent applications in Public and Private PAIR. The EBC offers support with electronic filing, eOffice Action, PatentIn and Checker, Customer Number Requests, PKI Digital Certificates, Customer Number Upload Spreadsheets, PDX requests, Fee Address Indication, PCT Associations, PatFT and AppFT Searches and Central Fax inquiries. Assistance is available Monday through Friday from 6:00 a.m. to Midnight ET (except federal holidays).
Trained staff are available to assist users with questions during all open hours at no charge