Granted Patent
Utility
US 4,965,547 · App. 07/363,829
Signal converter circuit
Inventor:
Rodger Ryan
Patented Case
View Patent ↗
Granted: Oct 23, 1990
Filed: Jun 9, 1989
Inventor
Rodger Ryan
Assignee (at issue)
General Electric Company
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.