Granted Patent
Utility
US 4,309,332 · App. 06/146,926
Ethylene-vinyl acetate copolymer rubbers
Inventors:
Joseph Fischer, John M. Hoyt
Patented Case
View Patent ↗
Granted: Jan 5, 1982
Filed: May 5, 1980
Inventors
Joseph Fischer
John M. Hoyt
Assignee (at issue)
National Distillers and Chemical 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.