USD458341SExpiredUtility

Ribbed filter

Priority: Apr 6, 2001Filed: Apr 6, 2001Granted: Jun 4, 2002
Est. expiryApr 6, 2021(expired)· nominal 20-yr term from priority
Inventors:David W. Pratt
63
PatentIndex Score
13
Cited by
3
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a ribbed filter, as substantially shown and described.

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