Granted Patent
Utility
US 6,318,406 · App. 09/525,282
Pilot operated relief valve
Inventor:
Jeff A. Conley
Patented Case
View Patent ↗
Granted: Nov 20, 2001
Filed: Mar 14, 2000
Inventor
Jeff A. Conley
Assignee (at issue)
Tyco Flow Control Kabushiki Kaisha
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.