Granted Patent
Utility
US 4,845,838 · App. 07/146,460
Method of making a PTC conductive polymer electrical device
Inventors:
Stephen M. Jacobs, Mary S. McTavish, Frank A. Doljack
Patented Case
View Patent ↗
Granted: Jul 11, 1989
Filed: Jan 21, 1988
Inventors
Stephen M. Jacobs
Mary S. McTavish
Frank A. Doljack
Assignee (at issue)
Raychem Limited
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.