Granted Patent
Utility
US 4,291,728 · App. 06/137,164
Hose construction
Inventor:
Liggett A. Cothran
Patented Case
View Patent ↗
Granted: Sep 29, 1981
Filed: Apr 4, 1980
Inventor
Liggett A. Cothran
Assignee (at issue)
DayCo Holdings, LP
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.