Granted Patent
Utility
US 5,212,669 · App. 07/713,964
Remote cut-off valve
Inventor:
Philip J. Jenkins
Patented Case
View Patent ↗
Granted: May 18, 1993
Filed: Jun 11, 1991
Inventor
Philip J. Jenkins
Assignee (at issue)
Western Atlas International, Inc.
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.