Granted Patent
Utility
US 4,438,466 · App. 06/364,735
D.C. Controlled adjustable ramp signal generator and method
Inventors:
John S. Fawkes, Walter F. Umholtz
Patented Case
View Patent ↗
Granted: Mar 20, 1984
Filed: Apr 2, 1982
Inventors
John S. Fawkes
Walter F. Umholtz
Assignee (at issue)
Ampex 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.