Granted Patent
Utility
US 5,232,194 · App. 07/948,095
Diaphragm assembly
Inventors:
Robert E. Saadi, Christopher C. Knoll
Patented Case
View Patent ↗
Granted: Aug 3, 1993
Filed: Sep 21, 1992
Inventors
Robert E. Saadi
Christopher C. Knoll
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.