Granted Patent
Utility
US 6,204,839 · App. 08/884,242
Capacitive sensing keyboard and pointing device
Inventor:
Stephan A. Mato, Jr.
Patented Case
View Patent ↗
Granted: Mar 20, 2001
Filed: Jun 27, 1997
Inventor
Stephan A. Mato, Jr.
Assignee (at issue)
Compaq Computer 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.