Granted Patent
Utility
US 4,520,306 · App. 06/525,129
Wall mounted electrical voltage control switch
Inventor:
David A. Kirby
Patented Case
View Patent ↗
Granted: May 28, 1985
Filed: Aug 22, 1983
Inventor
David A. Kirby
Assignee (at issue)
Lutron Electronics Co., Inc.
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.