Granted Patent
Utility
US 5,541,570 · App. 08/353,051
Force sensing ink, method of making same and improved force sensor
Inventor:
Donald J. McDowell
Patented Case
View Patent ↗
Granted: Jul 30, 1996
Filed: Dec 9, 1994
Inventor
Donald J. McDowell
Assignee (at issue)
Force Imaging Technologies, 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.