USD336161SExpiredUtility

Chimney cleaning device

4
Individually held — no corporate assignee on recordPriority: Sep 25, 1990Filed: Sep 25, 1990Granted: Jun 8, 1993
Est. expirySep 25, 2010(expired)· nominal 20-yr term from priority
Inventors:Shirley L. Hughes
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PatentIndex Score
0
Cited by
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References
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Claims

Claims

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

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