Granted Patent
Utility
US 4,510,097 · App. 05/962,543
Hindered aliphatic monoisocyanates
Inventors:
Clifton L. Kehr, Walter R. Wszolek, Nelson S. Marans
Patented Case
View Patent ↗
Granted: Apr 9, 1985
Filed: Nov 20, 1978
Inventors
Clifton L. Kehr
Walter R. Wszolek
Nelson S. Marans
Assignee (at issue)
W. R. Grace & Co.
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.