USD553474SExpiredUtility

Chain door lock

27
Assignee: MASTROGIOVANNI MARCOPriority: May 2, 2006Filed: May 2, 2006Granted: Oct 23, 2007
Est. expiryMay 2, 2026(expired)· nominal 20-yr term from priority
Inventors:Marco Mastrogiovanni
27
PatentIndex Score
2
Cited by
11
References
1
Claims

Claims

exact text as granted — not AI-modified
CLAIM 
     
       The ornamental design for a chain door lock, as shown and described.

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