Granted Patent
Utility
US 4,873,469 · App. 07/107,002
Infrared actuated control switch assembly
Inventors:
William Young, Wai-Shing Peter Ko, Curtis R. Davidson, Thomas Whitehurst
Patented Case
View Patent ↗
Granted: Oct 10, 1989
Filed: Oct 14, 1987
Inventors
William Young
Wai-Shing Peter Ko
Curtis R. Davidson
Thomas Whitehurst
Assignee (at issue)
Pittway 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.