Granted Patent
Utility
US 4,767,646 · App. 06/791,007
Wet abrasion resistant yarn and cordage
Inventors:
Colleen W. Cordova, Robert M. Marshall
Patented Case
View Patent ↗
Granted: Aug 30, 1988
Filed: Oct 24, 1985
Inventors
Colleen W. Cordova
Robert M. Marshall
Assignee (at issue)
ALLIED CONSULTING, 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.