USD318694SExpiredUtility

Portable play surface device

37
Assignee: RICHARDS-BUTTS THERESAPriority: Sep 12, 1988Filed: Sep 12, 1988Granted: Jul 30, 1991
Est. expirySep 12, 2008(expired)· nominal 20-yr term from priority
Inventors:Theresa Richards-Butts
37
PatentIndex Score
7
Cited by
5
References
1
Claims

Claims

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

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