Granted Patent
Utility
US 4,658,345 · App. 06/799,462
Automatic switchover circuit
Inventor:
Thomas M. Ingman
Patented Case
View Patent ↗
Granted: Apr 14, 1987
Filed: Nov 19, 1985
Inventor
Thomas M. Ingman
Assignee (at issue)
Condor, 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.