Granted Patent
Utility
US 6,802,330 · App. 10/647,585
Auto-relieving pressure modulating valve
Inventor:
Stephen Royle
Patented Case
View Patent ↗
Granted: Oct 12, 2004
Filed: Aug 25, 2003
Inventor
Stephen Royle
Assignee (at issue)
MICO 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.