Granted Patent
Utility
US 5,909,747 · App. 09/054,978
Radial flow diaphragm valve
Inventor:
Richard H. Schieber
Patented Case
View Patent ↗
Granted: Jun 8, 1999
Filed: Apr 3, 1998
Inventor
Richard H. Schieber
Assignee (at issue)
American Meter 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.