Granted Patent
Utility
US 5,375,146 · App. 08/057,573
Digital frequency conversion and tuning scheme for microwave radio receivers and transmitters
Inventor:
Harvey Chalmers
Patented Case
View Patent ↗
Granted: Dec 20, 1994
Filed: May 6, 1993
Inventor
Harvey Chalmers
Assignee (at issue)
Comsat, 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.