USD461813SExpiredUtility

Concave pushbutton

86
Assignee: 3COM CORPPriority: Jun 30, 2000Filed: Jun 30, 2000Granted: Aug 20, 2002
Est. expiryJun 30, 2020(expired)· nominal 20-yr term from priority
Inventors:Shu Kuen Chang
86
PatentIndex Score
34
Cited by
8
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a concave pushbutton, as shown and described.

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