Granted Patent
Utility
US 6,098,623 · App. 09/174,899
Pressure-limiting valve wherein valve plate oscillations are prevented
Inventor:
Bjorn Lindqvist
Patented Case
View Patent ↗
Granted: Aug 8, 2000
Filed: Oct 19, 1998
Inventor
Bjorn Lindqvist
Assignee (at issue)
Siemens Elema AB
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.