Granted Patent
Utility
US 6,002,389 · App. 08/935,511
Touch and pressure sensing method and apparatus
Inventor:
Bernard Kasser
Patented Case
View Patent ↗
Granted: Dec 14, 1999
Filed: Sep 23, 1997
Inventor
Bernard Kasser
Assignee (at issue)
LOGITECH, 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.