Granted Patent
Utility
US 4,747,621 · App. 06/932,726
Aquatic vacuum hose swivel cuff
Inventors:
Leo Gans, Ronald Presinzano
Patented Case
View Patent ↗
Granted: May 31, 1988
Filed: Nov 19, 1986
Inventors
Leo Gans
Ronald Presinzano
Assignee (at issue)
Action Technology 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.