Granted Patent
Utility
US 4,779,025 · App. 07/017,245
Computer touch panel filter
Inventors:
Richard D. Paynton, Richard D. Paynton
Patented Case
View Patent ↗
Granted: Oct 18, 1988
Filed: Feb 20, 1987
Inventors
Richard D. Paynton
Richard D. Paynton
Assignee (at issue)
Dontech 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.