Granted Patent
Utility
US 4,332,716 · App. 06/215,097
Polymer/polyisocyanate compositions, processes for making same and processes for making polyurethane products therefrom
Inventor:
Naresh Shah
Patented Case
View Patent ↗
Granted: Jun 1, 1982
Filed: Dec 10, 1980
Inventor
Naresh Shah
Assignee (at issue)
Union Carbide 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.