Granted Patent
Utility
US 4,479,670 · App. 06/122,523
Water flow control valve
Inventor:
Dieter Gabler
Patented Case
View Patent ↗
Granted: Oct 30, 1984
Filed: Feb 19, 1980
Inventor
Dieter Gabler
Assignee (at issue)
RANCO CO., Ltd.
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.