USD341965SExpiredUtility

Portable back rest

43
Individually held — no corporate assignee on recordPriority: Feb 20, 1992Filed: Feb 20, 1992Granted: Dec 7, 1993
Est. expiryFeb 20, 2012(expired)· nominal 20-yr term from priority
Inventors:Ronald T. Chapman
43
PatentIndex Score
10
Cited by
4
References
1
Claims

Claims

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

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