USD497388SExpiredUtility
Four-in-one pen
Est. expiryFeb 25, 2024(expired)· nominal 20-yr term from priority
Inventors:Lai Chun Kit
63
PatentIndex Score
22
Cited by
6
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a four-in-one pen, as shown and described.
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