Granted Patent
Utility
US 4,303,577 · App. 06/095,865
Polyamide antiozonants
Inventors:
James S. Ridgway, Donald A. Holmer, Oscar A. Pickett, Jr.
Patented Case
View Patent ↗
Granted: Dec 1, 1981
Filed: Nov 16, 1979
Inventors
James S. Ridgway
Donald A. Holmer
Oscar A. Pickett, Jr.
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.