Granted Patent
Utility
US 4,457,968 · App. 06/519,673
Process for manufacture of a poly (perfluoroolefin) belt and a belt made thereby
Inventor:
Roger J. Harvey
Patented Case
View Patent ↗
Granted: Jul 3, 1984
Filed: Aug 2, 1983
Inventor
Roger J. Harvey
Assignee (at issue)
Niagara Lockport Industries 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.