Granted Patent
Utility
US 4,687,810 · App. 06/815,495
Making rubber blends of diene rubber & EPR or EPDM
Inventor:
Aubert Y. Coran
Patented Case
View Patent ↗
Granted: Aug 18, 1987
Filed: Jan 2, 1986
Inventor
Aubert Y. Coran
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.