IP Library › Granted Patent US 4,475,570
Granted Patent Utility
US 4,475,570 · App. 06/312,139

Anti-syphon freezeless water hydrant

Inventors: Daniel W. Pike, Phillip Crawley, John L. Marshall, Steve A. Martin
Patented Case View Patent ↗
Granted: Oct 9, 1984 Filed: Oct 16, 1981
Inventors
Daniel W. Pike
Phillip Crawley
John L. Marshall
Steve A. Martin
Assignee (at issue)
Prier Brass Manufacturing Co.

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Quick Facts
Patent No.
US 4,475,570
App. No.
06/312,139
Filed
1981-10-16
Granted
1984-10-09
Kind
A