USD256216SExpiredUtility

Duct work support

55
Assignee: VAN HORN JAMES PPriority: Apr 11, 1978Filed: Apr 11, 1978Granted: Aug 5, 1980
Est. expiryApr 11, 1998(expired)· nominal 20-yr term from priority
Inventors:James P. Van HornVincent J. Rossi
55
PatentIndex Score
8
Cited by
4
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a duct work support, as shown and described.

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