Granted Patent
Utility
US 4,736,073 · App. 06/828,060
Noise-canceling system for a digitizing tablet
Inventor:
Brian Abernethy
Patented Case
View Patent ↗
Granted: Apr 5, 1988
Filed: Feb 10, 1986
Inventor
Brian Abernethy
Assignee (at issue)
Sanders GmbH
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.