Granted Patent
Utility
US 5,676,342 · App. 08/664,526
Proportional flow valve with diaphragm pressure member
Inventors:
Noel Otto, Peter A. Holborow, Scott M. Schipper
Patented Case
View Patent ↗
Granted: Oct 14, 1997
Filed: Jun 17, 1996
Inventors
Noel Otto
Peter A. Holborow
Scott M. Schipper
Assignee (at issue)
Automatic Switch Company
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.