Granted Patent
Utility
US 4,282,175 · App. 06/083,861
Stab-type coupling and method
Inventors:
Frank R. Volgstadt, David P. Passerell
Patented Case
View Patent ↗
Granted: Aug 4, 1981
Filed: Oct 11, 1979
Inventors
Frank R. Volgstadt
David P. Passerell
Assignee (at issue)
Perfection Holdings 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.