Granted Patent
Utility
US 4,283,597 · App. 06/021,929
Wide-range insulating/sealing sleeve
Inventor:
James J. Cooper, Jr.
Patented Case
View Patent ↗
Granted: Aug 11, 1981
Filed: Mar 19, 1979
Inventor
James J. Cooper, Jr.
Assignee (at issue)
International Telephone and Telegraph 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.