Granted Patent
Utility
US 4,739,299 · App. 06/820,757
Digitizer pad
Inventors:
Franklin N. Eventoff, Tyrone Christiansen
Patented Case
View Patent ↗
Granted: Apr 19, 1988
Filed: Jan 17, 1986
Inventors
Franklin N. Eventoff
Tyrone Christiansen
Assignee (at issue)
INTERLINK ELECTRONICS, 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.