USD507422SExpiredUtility
Office swivel chair
Est. expiryJan 21, 2023(expired)· nominal 20-yr term from priority
Inventors:Mathias Seiler
57
PatentIndex Score
10
Cited by
6
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for an office swivel chair, as shown.
Cited by (0)
No later patents cite this yet.
References (0)
No backward citations on record.