Granted Patent
Utility
US 4,666,166 · App. 06/670,452
Clamping arrangement for diaphragm-type piston
Inventors:
James E. Hart, Michael T. Zoric, Allen W. Kyllonen
Patented Case
View Patent ↗
Granted: May 19, 1987
Filed: Nov 13, 1984
Inventors
James E. Hart
Michael T. Zoric
Allen W. Kyllonen
Assignee (at issue)
American Standard Inc.
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.