USD263168SExpiredUtility

Portable drainage device

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Assignee: KURTZ LEONARD DPriority: Sep 12, 1979Filed: Sep 12, 1979Granted: Feb 23, 1982
Est. expirySep 12, 1999(expired)· nominal 20-yr term from priority
Inventors:Leonard D. KurtzRobert E. Bidwell
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PatentIndex Score
4
Cited by
5
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a portable drainage device, substantially as shown.

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