Granted Patent
Utility
US 4,289,670 · App. 06/105,475
Pressure sensitive correction composition and method of use
Inventors:
Fred M. Creekmore, Dorothy J. Kennair, Benjamin F. Livingston, Joseph J. Sabad
Patented Case
View Patent ↗
Granted: Sep 15, 1981
Filed: Dec 20, 1979
Inventors
Fred M. Creekmore
Dorothy J. Kennair
Benjamin F. Livingston
Joseph J. Sabad
Assignee (at issue)
International Business Machines Corporation
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.