Granted Patent
Utility
US 4,887,516 · App. 07/243,943
Clamping arrangement for diaphragm piston assembly
Inventors:
Daniel G. Scott, Theodore B. Hill
Patented Case
View Patent ↗
Granted: Dec 19, 1989
Filed: Sep 13, 1988
Inventors
Daniel G. Scott
Theodore B. Hill
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.