USD304464SExpiredUtility
Catenary arch building toy
Individually held — no corporate assignee on recordPriority: Jul 10, 1987Filed: Jul 10, 1987Granted: Nov 7, 1989
Est. expiryJul 10, 2007(expired)· nominal 20-yr term from priority
Inventors:Donald Andrews
30
PatentIndex Score
1
Cited by
4
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for caternary arch building toy, as shown and described.
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