USD390949SExpiredUtility

Grate bar key for stokers feeding steam generator furnaces

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Assignee: COMBUSTION ENGPriority: Dec 30, 1996Filed: Dec 30, 1996Granted: Feb 17, 1998
Est. expiryDec 30, 2016(expired)· nominal 20-yr term from priority
Inventors:Milton A. FongMark R. HapgoodIvan Semyanko
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PatentIndex Score
2
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3
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a grate bar key for stokers feeding steam generator furnaces, as shown and described.

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