USD374276SExpiredUtility

Air heater

38
Assignee: DURACRAFT CORPPriority: May 6, 1994Filed: May 6, 1994Granted: Oct 1, 1996
Est. expiryMay 6, 2014(expired)· nominal 20-yr term from priority
Inventors:Richard M. O'Grady
38
PatentIndex Score
2
Cited by
2
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an air heater, as shown and described.

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