USD492310SExpiredUtility
Expanded keyboard
Est. expiryJan 9, 2023(expired)· nominal 20-yr term from priority
Inventors:Chih-Ling Chien
72
PatentIndex Score
17
Cited by
4
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for an expanded keyboard, as shown and described.
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