USD258187SExpiredUtility

Portable chair insert for back support

82
Assignee: ROBBINS ALANPriority: Apr 4, 1979Filed: Apr 4, 1979Granted: Feb 10, 1981
Est. expiryApr 4, 1999(expired)· nominal 20-yr term from priority
Inventors:Alan M. Robbins
82
PatentIndex Score
32
Cited by
3
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for portable chair insert for back support, substantially as shown.

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