USD835353SActiveUtility

Pivot knob ring for a welding helmet

Assignee: 3M INNOVATIVE PROPERTIES COPriority: Sep 22, 2017Filed: Apr 3, 2018Granted: Dec 4, 2018

Est. expirySep 22, 2037(~11.2 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 a pivot knob ring for a welding helmet, as shown and described.

Join the waitlist — get patent alerts

Track USD835353S — get alerts on status changes and closely related new filings.

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