Granted Patent
Utility
US 5,212,804 · App. 07/772,507
Communication system having multiple base stations and multiple mobile units
Inventor:
Bernard K. Choate
Patented Case
View Patent ↗
Granted: May 18, 1993
Filed: Oct 7, 1991
Inventor
Bernard K. Choate
Assignee (at issue)
GTE Airfone Incorporated
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.