Granted Patent
Utility
US 4,384,595 · App. 06/301,625
Hose construction
Inventors:
Donald E. Washkewicz, John R. Greco
Patented Case
View Patent ↗
Granted: May 24, 1983
Filed: Sep 14, 1981
Inventors
Donald E. Washkewicz
John R. Greco
Assignee (at issue)
Parker-Hannifin Corporation
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.