USD299872SExpiredUtility

Ceiling tile

91
Assignee: ARMSTRONG WORLD IND INCPriority: Mar 27, 1986Filed: Mar 27, 1986Granted: Feb 14, 1989
Est. expiryMar 27, 2006(expired)· nominal 20-yr term from priority
Inventors:Michael Jennings
91
PatentIndex Score
40
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1
References
1
Claims

Claims

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

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