USD381880SExpiredUtility

Dual element heater

66
Assignee: METCAL INCPriority: Sep 2, 1994Filed: Sep 2, 1994Granted: Aug 5, 1997
Est. expirySep 2, 2014(expired)· nominal 20-yr term from priority
Inventors:Ronald W. LavalleyMichael CarlomagnoJeffrey D. PhilipsTark Abed
66
PatentIndex Score
13
Cited by
10
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a dual element heater, as shown and described.

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