Invalidating a trademark
If these documents are not timely filed, the registration will expire or be cancelled and cannot be revived or reinstated.
A trademark registration may remain in force for potentially unlimited consecutive ten-year periods as long as the owner meets the legal requirements for post-registration maintenance and renewal and timely files all necessary documents.
A trademark is generally a word, phrase, symbol, or design, or a combination of these elements, that identifies and distinguishes the source of one party's goods from those of others.
A service mark is the same as a trademark except that it identifies and distinguishes the source of a service rather than goods.
The owner must file a "Declaration of Use" between the fifth and sixth year following registration, attesting to the continued use or excusable nonuse of the mark on or in connection with the goods and/or services in the registration.
In addition, the owner must file a combined Declaration of Use (or Excusable Nonuse) and Application for Renewal between the ninth and tenth year after registration, and every 10 years thereafter, attesting to the continued use or excusable nonuse of the mark on or in connection with the goods and/or services in the registration and requesting to renew the registration.