A federal registration typically provides legal rights to the mark throughout the entire United States.
REGISTERED TRADEMARK 3,432,286
The same mark can be registered with the U.S. Trademark Office by different parties for different goods or services as long as consumers are unlikely to be confused by the different uses.
Currently, U.S. registered marks must be renewed between the 5th and 6th year after registration as well as every 10 years from the date of registration. If properly maintained, trademarks may last forever.
Continued use of the mark in commerce is also a requirement for maintaining legal rights in a mark.
Policing infringers of the mark is also required to maintain rights in a mark. If a mark owner is aware of another party using the same or substantially similar mark for the same or similar goods or services, and if the owner of the mark does not stop the infringer after a reasonable period of time, the mark could be deemed to be unenforceable.