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5. Official Gazette: Patents

The Official Gazette is used to obtain a summary and a representative drawing for all patents on your list. By eliminating patents unrelated to your invention you may not have to examine the complete patent for every number on your list.

The Official Gazette is published weekly and patents are listed in one numerical sequence by patent number. Design patents appear at the back of each issue.

Availability:

Paper: Science Section, 1872 to date

Patent Notices, Issued Patents, Withdrawn Patent Numbers, Expired Patents, Patent Terms Extended
 

Internet: Only Gazette's Notices are online

Use PTO Patents page (www.uspto.gov/main/patents.htm) for Issued Patents, Withdrawn Patent Numbers, Expired Patents, Patent Terms Extended