Granted Patent
Utility
US 6,299,128 · App. 09/356,739
Diaphragm orifice for flushometer
Inventor:
William A. Verdecchia
Patented Case
View Patent ↗
Granted: Oct 9, 2001
Filed: Jul 19, 1999
Inventor
William A. Verdecchia
Assignee (at issue)
ZURN INDUSTRIES, LLC
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.