Granted Patent
Utility
US 4,243,700 · App. 06/018,378
Method of rendering an ink strippable
Inventor:
John R. Piazza
Patented Case
View Patent ↗
Granted: Jan 6, 1981
Filed: Mar 7, 1979
Inventor
John R. Piazza
Assignee (at issue)
Western Electric Company, 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.