USD447554SExpiredUtility

Flame retention head for a waste oil-burning system

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Assignee: BLACK GOLD CORPPriority: May 22, 2000Filed: Aug 14, 2000Granted: Sep 4, 2001
Est. expiryMay 22, 2020(expired)· nominal 20-yr term from priority
Inventors:Eugene C. BriggsWayne RobertsonChristopher L. Gansel
F23G 7/05F23D 11/406
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PatentIndex Score
3
Cited by
5
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a flame retention head for a waste oil-burning system, as shown and described.

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