Granted Patent
Utility
US 6,811,142 · App. 10/240,882
Valve device
Inventor:
Gunnar Svendsen
Patented Case
View Patent ↗
Granted: Nov 2, 2004
Filed: Oct 4, 2002
Inventor
Gunnar Svendsen
Assignee (at issue)
UnoMedical A/S
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.