Granted Patent
Utility
US 5,802,452 · App. 08/587,411
Multiple channel radio frequency repeater
Inventors:
John E. Grandfield, John Collins, William Hewett
Patented Case
View Patent ↗
Granted: Sep 1, 1998
Filed: Jan 17, 1996
Inventors
John E. Grandfield
John Collins
William Hewett
Assignee (at issue)
GTE Government Systems 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.