Granted Patent
Utility
US 4,391,953 · App. 06/299,891
Diene rubber compositions containing N,N'-dithioformanilide crosslinkers
Inventor:
Eiichi Morita
Patented Case
View Patent ↗
Granted: Jul 5, 1983
Filed: Sep 8, 1981
Inventor
Eiichi Morita
Assignee (at issue)
Monsanto Company
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.