Granted Patent
Utility
US 4,780,576 · App. 07/022,897
Insulated electrical cable
Inventor:
Mineya Kuno
Patented Case
View Patent ↗
Granted: Oct 25, 1988
Filed: Mar 6, 1987
Inventor
Mineya Kuno
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, LTD.
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.