Granted Patent
Utility
US 4,463,121 · App. 06/409,219
Thermoforming partially crystalline polyester articles
Inventors:
Robert J. Gartland, Joseph N. Feil
Patented Case
View Patent ↗
Granted: Jul 31, 1984
Filed: Aug 18, 1982
Inventors
Robert J. Gartland
Joseph N. Feil
Assignee (at issue)
THE GOODYEAR TIRE & RUBBER COMPANY
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.