If you have applied for and received a federal registration for your trademark, you’ll need to renew the TM as required by law.
To renew your trademark registration, an Affidavit of Use and later, a Section 9 Renewal Application, must be filed between the fifth and sixth year following the initial trademark registration. After that, you’ll have to renew your trademark every ten years after the initial registration date. For example, you’ll renew your trademark between year 5 and 6, then at year 10, and then every 10 years after that. Any trademarks or renewals filed after November 16, 1989 will have a 10-year term. However, Trademarks filed prior to this date have a 20 year term.
Note: Copyrights, trademarks and patents are applied to different types of intellectual property. Make sure when you file, that you are applying for and filing the proper application for the intellectual property you want to protect.