USD333572SExpiredUtility

Chimney cleaning brush

37
Individually held — no corporate assignee on recordPriority: Mar 3, 1991Filed: Aug 7, 1991Granted: Mar 2, 1993
Est. expiryMar 3, 2011(expired)· nominal 20-yr term from priority
Inventors:John A. JansenRussell M. Sandberg
37
PatentIndex Score
8
Cited by
4
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a chimney cleaning brush, as shown and described.

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