USD295864SExpiredUtility

Electric heating unit for attachment to an automotive oil filter

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Assignee: TOIVIO ILKKAPriority: Feb 15, 1985Filed: Aug 7, 1985Granted: May 24, 1988
Est. expiryFeb 15, 2005(expired)· nominal 20-yr term from priority
Inventors:Ilkka ToivioTerttu Toivio
49
PatentIndex Score
6
Cited by
4
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an electric heating unit for attachment to an automotive oil filter, as shown and described.

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