USD920300SActiveUtility

Add-on for a smartphone for smartphone-based photorefraction

Assignee: ZEISS CARL VISION INT GMBHPriority: Mar 23, 2018Filed: Sep 18, 2018Granted: May 25, 2021

Est. expiryMar 23, 2038(~11.7 yrs left)· nominal 20-yr term from priority

PatentIndex Score

Cited by

References

Claims

exact text as granted — not AI-modified

CLAIM 
     
       The ornamental design for an add-on for a smartphone for smartphone-based photorefraction, as shown and described.

Join the waitlist — get patent alerts

Track USD920300S — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.