USD493209SExpiredUtility

Flap valve

44
Priority: Oct 29, 2003Filed: Oct 29, 2003Granted: Jul 20, 2004
Est. expiryOct 29, 2023(expired)· nominal 20-yr term from priority
Inventors:Rodney George Wade
44
PatentIndex Score
5
Cited by
11
References
1
Claims

Claims

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

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