USD256551SExpiredUtility
Door locking chain
Individually held — no corporate assignee on recordPriority: Jul 31, 1978Filed: Jul 31, 1978Granted: Aug 26, 1980
Est. expiryJul 31, 1998(expired)· nominal 20-yr term from priority
Inventors:Clay M. Webb
68
PatentIndex Score
17
Cited by
1
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a door locking chain, as shown and described.
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