USD341596SExpiredUtility

Engine coolant heater

44
Assignee: KIM HOTSTART MFG COMPANYPriority: Feb 6, 1992Filed: Feb 6, 1992Granted: Nov 23, 1993
Est. expiryFeb 6, 2012(expired)· nominal 20-yr term from priority
Inventors:John Stein
44
PatentIndex Score
6
Cited by
10
References
1
Claims

Claims

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

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