USD314615SExpiredUtility
Portable electric heater
Individually held — no corporate assignee on recordPriority: Feb 5, 1988Filed: Aug 4, 1988Granted: Feb 12, 1991
Est. expiryFeb 5, 2008(expired)· nominal 20-yr term from priority
Inventors:Michael W. Hetherington
46
PatentIndex Score
5
Cited by
2
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a portable electric heater, as shown and described.
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