USD244296SExpiredUtility

Ceiling tile

68
Assignee: NAT GYPSUM COPriority: Aug 22, 1975Filed: Aug 22, 1975Granted: May 10, 1977
Est. expiryAug 22, 1995(expired)· nominal 20-yr term from priority
Inventors:Thomas R. Smith
68
PatentIndex Score
9
Cited by
1
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a ceiling tile, substantially as shown.

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