Granted Patent
Utility
US 4,479,669 · App. 06/364,392
Pipe connector with threaded latch screws
Inventor:
Joseph H. Hynes
Patented Case
View Patent ↗
Granted: Oct 30, 1984
Filed: Apr 1, 1982
Inventor
Joseph H. Hynes
Assignee (at issue)
Hydril 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.