Granted Patent
Utility
US 4,237,844 · App. 05/925,376
Signal generating apparatus
Inventor:
Richard A. Lathlaen
Patented Case
View Patent ↗
Granted: Dec 9, 1980
Filed: Jul 17, 1978
Inventor
Richard A. Lathlaen
Assignee (at issue)
TRW Limited
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.