Granted Patent
Utility
US 4,330,144 · App. 05/916,738
Tube fitting assembly with deformable seal
Inventor:
Ralph G. Ridenour
Patented Case
View Patent ↗
Granted: May 18, 1982
Filed: Jun 19, 1978
Inventor
Ralph G. Ridenour
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.