Granted Patent
Utility
US 5,205,534 · App. 07/767,021
Actuator and zone valve
Inventor:
Attilio G. Giordani
Patented Case
View Patent ↗
Granted: Apr 27, 1993
Filed: Sep 27, 1991
Inventor
Attilio G. Giordani
Assignee (at issue)
TACO, 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.