USD518353SExpiredUtility

Doorknob

Assignee: MASTER LOCK COPriority: Apr 14, 2004Filed: Mar 28, 2005Granted: Apr 4, 2006

Est. expiryApr 14, 2024(expired)· nominal 20-yr term from priority

PatentIndex Score

Cited by

166

References

Claims

exact text as granted — not AI-modified

CLAIM 
     
       The ornamental design for a doorknob, as shown and described.

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