Granted Patent
Utility
US 6,616,119 · App. 09/944,759
Bypass orifice and filter for diaphragm type flush valve
Inventor:
John R. Wilson
Patented Case
View Patent ↗
Granted: Sep 9, 2003
Filed: Sep 4, 2001
Inventor
John R. Wilson
Assignee (at issue)
Sloan Valve 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.