USD252685SExpiredUtility
Evaporative cooler pump
Individually held — no corporate assignee on recordPriority: Jun 16, 1978Filed: Jun 16, 1978Granted: Aug 21, 1979
Est. expiryJun 16, 1998(expired)· nominal 20-yr term from priority
Inventors:Duane K. Johnston
36
PatentIndex Score
5
Cited by
3
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for an evaporative cooler pump, as shown.
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