USD673401SExpiredUtility
Chair support structure
Est. expiryMay 13, 2025(expired)· nominal 20-yr term from priority
Inventors:Niels Diffrient
61
PatentIndex Score
9
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192
References
1
Claims
Claims
exact text as granted — not AI-modifiedI claim the ornamental design for a chair support structure, as shown and described.
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