Granted Patent
Utility
US 4,381,353 · App. 06/317,708
Sprayed polyurethane foams employing reactive amines to improve the foam surface
Inventor:
Kenneth G. McDaniel
Patented Case
View Patent ↗
Granted: Apr 26, 1983
Filed: Nov 2, 1981
Inventor
Kenneth G. McDaniel
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.