Granted Patent
Utility
US 4,911,972 · App. 07/231,711
Insulating composite gasket
Inventor:
Robert Angelo Mercuri
Patented Case
View Patent ↗
Granted: Mar 27, 1990
Filed: Aug 12, 1988
Inventor
Robert Angelo Mercuri
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.