Granted Patent
Utility
US 4,258,942 · App. 06/042,573
Threaded ferrule hose coupling
Inventor:
Frank J. Viola
Patented Case
View Patent ↗
Granted: Mar 31, 1981
Filed: May 25, 1979
Inventor
Frank J. Viola
Assignee (at issue)
Ideal LLC
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.