Granted Patent
Utility
US 6,554,017 · App. 09/765,245
Pressure regulating valve with secondary venting measures
Inventor:
Rolf Berger
Patented Case
View Patent ↗
Granted: Apr 29, 2003
Filed: Jan 18, 2001
Inventor
Rolf Berger
Assignee (at issue)
FESTO AG & CO.
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.