Granted Patent
Utility
US 5,248,166 · App. 07/861,283
Flowline safety joint
Inventor:
Robert Lee Wilkins
Patented Case
View Patent ↗
Granted: Sep 28, 1993
Filed: Mar 31, 1992
Inventor
Robert Lee Wilkins
Assignee (at issue)
Cooper Industries Holdings
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.