USD897528SActiveUtility

Optical device

35
Assignee: WELCH ALLYN INCPriority: Aug 17, 2018Filed: Aug 17, 2018Granted: Sep 29, 2020
Est. expiryAug 17, 2038(~12 yrs left)· nominal 20-yr term from priority
Inventors:Brian Perrault
35
PatentIndex Score
1
Cited by
48
References
1
Claims

Claims

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

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