Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Method and apparatus for establishing activation date for a cellular telephone

Method and apparatus for establishing activation date for a cellular telephone

US Patent 5894596 · Granted Apr 13, 1999

Estimated economic value: $39,186,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Radiotelephones having contact-sensitive user interfaces and methods of operatin2014
Radiotelephones having contact-sensitive user interfaces and methods of operatin2013
Apparatus and method for automatically prioritizing telephone dialing strings2003
Short distance communication and remote control capability for mobile telephones2001
Radiotelephones having contact-sensitive user interfaces and methods of operatin2001
System and method for radio-communication using frequency modulated signals2001
Radiotelephones having contact-sensitive user interfaces and methods of operatin2000
Communication module having selectively programmable exterior surface2000
Method and apparatus for cooling an electronic device and generating a vibration1999
System and method for updating a memory in an electronic device via wireless dat1999
Recyclable cellular telephone and method and apparatus for supporting the use of1999
Power transfer and voltage level conversion for a battery-powered electronic dev1999