Granted Patent
Utility
US 4,620,567 · App. 06/758,698
Solenoid-operated valve
Inventor:
Ronald Kurtz
Patented Case
View Patent ↗
Granted: Nov 4, 1986
Filed: Jul 15, 1985
Inventor
Ronald Kurtz
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.