USD650407SActiveUtility

Optical lens

40
Assignee: CHANG HSUEH-CHENPriority: Feb 8, 2010Filed: Jun 2, 2010Granted: Dec 13, 2011
Est. expiryFeb 8, 2030(~3.5 yrs left)· nominal 20-yr term from priority
Inventors:Hsueh-Chen ChangMing-Young Shiao
40
PatentIndex Score
5
Cited by
13
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an optical lens, as shown and described.

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