Granted Patent
Utility
US 4,277,541 · App. 06/080,849
Protection of anhydride copolymers
Inventor:
Vincent A. Aliberti
Patented Case
View Patent ↗
Granted: Jul 7, 1981
Filed: Oct 1, 1979
Inventor
Vincent A. Aliberti
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.