USD276603SExpiredUtility

Helicopter step

28
Individually held — no corporate assignee on recordPriority: Feb 13, 1980Filed: Feb 13, 1980Granted: Dec 4, 1984
Est. expiryFeb 13, 2000(expired)· nominal 20-yr term from priority
Inventors:Robert B. McnabDavid KentJames A. Wolfe
28
PatentIndex Score
0
Cited by
4
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a helicopter step, substantially as shown.

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