Granted Patent
Utility
US 4,620,119 · App. 06/638,090
Dual-mode timer circuit
Inventor:
Gregory A. Williams
Patented Case
View Patent ↗
Granted: Oct 28, 1986
Filed: Aug 6, 1984
Inventor
Gregory A. Williams
Assignee (at issue)
Zenith Electronics LLC
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.