Granted Patent
Utility
US 4,960,431 · App. 07/194,241
Wet abrasion resistant yarn and cordage: aqueous finish with oxidized polyethylene and ammonium hydroxide
Inventors:
Colleen W. Cordova, Robert M. Marshall
Patented Case
View Patent ↗
Granted: Oct 2, 1990
Filed: May 16, 1988
Inventors
Colleen W. Cordova
Robert M. Marshall
Assignee (at issue)
AlliedSignal, 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.