USD386237SExpiredUtility

Double helix ladder

33
Assignee: GAME TIME INCPriority: Aug 28, 1995Filed: Aug 28, 1995Granted: Nov 11, 1997
Est. expiryAug 28, 2015(expired)· nominal 20-yr term from priority
Inventors:Kert E. ArtwickGary MaxWesley D. SuttonThomas Robert NorquistHollis Gentry
33
PatentIndex Score
3
Cited by
8
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a double helix ladder, as shown and described.

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