USD667859SActiveUtility

Optical lens

44
Assignee: CHEN CHIN-CHUNGPriority: Jun 29, 2011Filed: Jun 29, 2011Granted: Sep 25, 2012
Est. expiryJun 29, 2031(~4.9 yrs left)· nominal 20-yr term from priority
Inventors:Chin-Chung ChenSheng Qiao
44
PatentIndex Score
5
Cited by
20
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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