Granted Patent
Utility
US 4,631,316 · App. 06/585,072
Curable rubber compositions comprising substituted dithiocarbamylurea accelerators
Inventor:
Joseph F. Stieber
Patented Case
View Patent ↗
Granted: Dec 23, 1986
Filed: Mar 1, 1984
Inventor
Joseph F. Stieber
Assignee (at issue)
Uniroyal Chemical Company, 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.