USD347465SExpiredUtility

Backflow prevention valve

56
Assignee: JAMES HARDIE IRRIGATION PTY LTDPriority: Aug 26, 1993Filed: Aug 26, 1993Granted: May 31, 1994
Est. expiryAug 26, 2013(expired)· nominal 20-yr term from priority
Inventors:Cosmo Luppino
56
PatentIndex Score
10
Cited by
5
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a backflow prevention valve, as shown and described.

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