USD311337SExpiredUtility

Twin tray blank

68
Assignee: WESTVACO CORPPriority: Sep 10, 1987Filed: Sep 10, 1987Granted: Oct 16, 1990
Est. expirySep 10, 2007(expired)· nominal 20-yr term from priority
Inventors:William R. Rigby
68
PatentIndex Score
11
Cited by
10
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for twin tray blank, as shown and described.

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