Granted Patent
Utility
US 4,289,339 · App. 06/098,067
Fitting with tangential locking rod for coupling pipes
Inventor:
Arne Hansen
Patented Case
View Patent ↗
Granted: Sep 15, 1981
Filed: Nov 28, 1979
Inventor
Arne Hansen
Assignee (at issue)
Meyertech 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.