USD289432SExpiredUtility
Hollow tile for solar heating system
Individually held — no corporate assignee on recordPriority: Jul 18, 1984Filed: Dec 17, 1984Granted: Apr 21, 1987
Est. expiryJul 18, 2004(expired)· nominal 20-yr term from priority
Inventors:Lewis G. Vardey
72
PatentIndex Score
19
Cited by
1
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a hollow tile for solar heating system, as shown and described.
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