USD257774SExpiredUtility
Carpet and rug cleaner
Individually held — no corporate assignee on recordPriority: Jun 7, 1978Filed: Jun 7, 1978Granted: Jan 6, 1981
Est. expiryJun 7, 1998(expired)· nominal 20-yr term from priority
Inventors:Donald F. Pierson
61
PatentIndex Score
13
Cited by
3
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a carpet and rug cleaner, as shown.
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