USD252295SExpiredUtility
Bubble display device
Individually held — no corporate assignee on recordPriority: Apr 11, 1977Filed: Apr 11, 1977Granted: Jul 3, 1979
Est. expiryApr 11, 1997(expired)· nominal 20-yr term from priority
Inventors:Billie M. Crutchfield
24
PatentIndex Score
1
Cited by
4
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a bubble display device, as shown and described.
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