USD258530SExpiredUtility
Flat plate solar collector
Individually held — no corporate assignee on recordPriority: Apr 23, 1979Filed: Apr 23, 1979Granted: Mar 10, 1981
Est. expiryApr 23, 1999(expired)· nominal 20-yr term from priority
Inventors:Donald A. Atkinson
67
PatentIndex Score
11
Cited by
2
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a flat plate solar collector, as shown and described.
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