USD321748SExpiredUtility

Air gap anti-siphon valve

Assignee: BRITO RALPHPriority: Nov 21, 1988Filed: Nov 21, 1988Granted: Nov 19, 1991

Est. expiryNov 21, 2008(expired)· nominal 20-yr term from priority

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Claims

exact text as granted — not AI-modified

The ornamental design for an air gap anti-siphon valve, as shown and described.

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