Granted Patent
Utility
US 4,495,093 · App. 06/368,639
Process for making thiobiscarbamates
Inventor:
Wallace Y. Fu
Patented Case
View Patent ↗
Granted: Jan 22, 1985
Filed: Apr 15, 1982
Inventor
Wallace Y. Fu
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.