Granted Patent
Utility
US 4,279,953 · App. 06/144,138
Method for treating polyurethane foam
Inventors:
Bruce L. Barden, William D. Coder, Jr.
Patented Case
View Patent ↗
Granted: Jul 21, 1981
Filed: Apr 28, 1980
Inventors
Bruce L. Barden
William D. Coder, Jr.
Assignee (at issue)
The General 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.