Granted Patent
Utility
US 4,479,002 · App. 05/636,371
Carbamate-carbamoyl fluoride compounds
Inventor:
Wei Liang
Patented Case
View Patent ↗
Granted: Oct 23, 1984
Filed: Dec 1, 1975
Inventor
Wei Liang
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.