USD272020SExpiredUtility

Spring base chair

78
Individually held — no corporate assignee on recordPriority: Mar 23, 1981Filed: Mar 23, 1981Granted: Jan 3, 1984
Est. expiryMar 23, 2001(expired)· nominal 20-yr term from priority
Inventors:Willis A. Baty
78
PatentIndex Score
32
Cited by
11
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a spring base chair, substantially as shown.

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