Granted Patent
Utility
US 4,460,201 · App. 06/560,278
Pipe connectors
Inventor:
John D. McGugan
Patented Case
View Patent ↗
Granted: Jul 17, 1984
Filed: Dec 13, 1983
Inventor
John D. McGugan
Assignee (at issue)
Hunting Oilfield Services (UK) Ltd.
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.