USD301831SExpiredUtility

Key for door locks

41
Assignee: MASCO BUILDING PRODUCTS CORPPriority: Jul 20, 1987Filed: Jul 20, 1987Granted: Jun 27, 1989
Est. expiryJul 20, 2007(expired)· nominal 20-yr term from priority
Inventors:Eugene S. Mccaa
41
PatentIndex Score
4
Cited by
4
References
1
Claims

Claims

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

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