Granted Patent
Utility
US 6,020,847 · App. 08/638,066
Geolocation method and apparatus for satellite based telecommunications system
Inventors:
Eric L. Upton, Scott Stephens
Patented Case
View Patent ↗
Granted: Feb 1, 2000
Filed: Apr 25, 1996
Inventors
Eric L. Upton
Scott Stephens
Assignee (at issue)
TWR Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.