Granted Patent
Utility
US 4,015,865 · App. 05/657,957
Safety yoke for high pressure gases
Inventor:
Robert M. Kongelka
Patented Case
View Patent ↗
Granted: Apr 5, 1977
Filed: Feb 13, 1976
Inventor
Robert M. Kongelka
Assignee (at issue)
Superior Valve Company
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.