Granted Patent
Utility
US 6,374,145 · App. 09/211,091
Proximity sensor for screen saver and password delay
Inventor:
Mark Lignoul
Patented Case
View Patent ↗
Granted: Apr 16, 2002
Filed: Dec 14, 1998
Inventor
Mark Lignoul
Assignee (at issue)
Mark Lignoul
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.