Granted Patent
Utility
US 5,789,869 · App. 08/714,896
Light sensitive dimmer switch circuit
Inventors:
David Lo, Tan Yuen Hung
Patented Case
View Patent ↗
Granted: Aug 4, 1998
Filed: Sep 17, 1996
Inventors
David Lo
Tan Yuen Hung
Assignee (at issue)
Holmes Products 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.