USD297352SExpiredUtility

Rotary air valve

23
Individually held — no corporate assignee on recordPriority: Apr 22, 1985Filed: Apr 22, 1985Granted: Aug 23, 1988
Est. expiryApr 22, 2005(expired)· nominal 20-yr term from priority
Inventors:Charles R. Clement
23
PatentIndex Score
0
Cited by
2
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for the rotary air valve, as shown.

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