Granted Patent
Utility
US 5,437,305 · App. 08/299,998
Flow control valve
Inventor:
Chris M. Leinen
Patented Case
View Patent ↗
Granted: Aug 1, 1995
Filed: Sep 1, 1994
Inventor
Chris M. Leinen
Assignee (at issue)
Forward Spin Technologies, 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.