Granted Patent
Utility
US 5,887,259 · App. 08/263,711
Multiple mode personal wireless communications system
Inventors:
Robert G. Zicker, John K. Dion
Patented Case
View Patent ↗
Granted: Mar 23, 1999
Filed: Jun 22, 1994
Inventors
Robert G. Zicker
John K. Dion
Assignee (at issue)
GTE Mobile Communications Service Corporation
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.