USD248643SExpiredUtility
Insulator for an open coil electric heating unit
Est. expiryOct 12, 1996(expired)· nominal 20-yr term from priority
Inventors:Carlisle Thweatt, Jr.
40
PatentIndex Score
2
Cited by
5
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for an insulator for an open coil electric heating unit, substantially as shown.
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