Granted Patent
Utility
US 6,743,193 · App. 09/907,872
Hermetic flow selector valve
Inventors:
James M. Brugger, Jeffrey H. Burbank
Patented Case
View Patent ↗
Granted: Jun 1, 2004
Filed: Jul 17, 2001
Inventors
James M. Brugger
Jeffrey H. Burbank
Assignee (at issue)
NxStage Medical, Inc.
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.