USD456067SExpiredUtility

Parabolic heater

57
Assignee: NAT PRESTO INDPriority: May 8, 2001Filed: May 8, 2001Granted: Apr 23, 2002
Est. expiryMay 8, 2021(expired)· nominal 20-yr term from priority
Inventors:Lawrence A. KalinaChevis Watkinson
57
PatentIndex Score
11
Cited by
41
References
1
Claims

Claims

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

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