Granted Patent
Utility
US 4,716,193 · App. 06/892,237
Reactive glass component in rim
Inventor:
Robert A. Grigsby, Jr.
Patented Case
View Patent ↗
Granted: Dec 29, 1987
Filed: Aug 4, 1986
Inventor
Robert A. Grigsby, Jr.
Assignee (at issue)
Texaco Inc.
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.