USD348313SExpiredUtility

Solar unit for use in stock tanks and small ponds to keep water in unfrozen state in winter so animals may drink it

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Individually held — no corporate assignee on recordPriority: Jan 21, 1992Filed: Jan 21, 1992Granted: Jun 28, 1994
Est. expiryJan 21, 2012(expired)· nominal 20-yr term from priority
Inventors:Henry S. Saruwatari
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PatentIndex Score
1
Cited by
3
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamenal design for a solar unit for use in stock tanks and small ponds to keep water in unfrozen state in winter so animals may drink it, as shown and described.

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