Granted Patent
Utility
US 6,173,737 · App. 09/346,446
Bidirectional flow control valve
Inventor:
Stanton D. Saucier
Patented Case
View Patent ↗
Granted: Jan 16, 2001
Filed: Jul 1, 1999
Inventor
Stanton D. Saucier
Assignee (at issue)
Ricon Corp.
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.