Granted Patent
Utility
US 3,997,713 · App. 05/443,492
Insulated wire or cable
Inventor:
Robert J. Turbett
Patented Case
View Patent ↗
Granted: Dec 14, 1976
Filed: Feb 19, 1974
Inventor
Robert J. Turbett
Assignee (at issue)
Union Carbide 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.