Granted Patent
Utility
US 4,193,034 · App. 05/922,245
Radio receiver for FSK signals
Inventor:
Ian A. W. Vance
Patented Case
View Patent ↗
Granted: Mar 11, 1980
Filed: Jul 6, 1978
Inventor
Ian A. W. Vance
Assignee (at issue)
International Standard Electric 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.