USD524718SExpiredUtility

Rigid coaxial rotor helicopter with dual auxiliary propulsion

92
Assignee: SIKORSKY AIRCRAFT CORPPriority: May 31, 2005Filed: May 31, 2005Granted: Jul 11, 2006
Est. expiryMay 31, 2025(expired)· nominal 20-yr term from priority
Inventors:Mark W. ScottWilliam J. Eadie
92
PatentIndex Score
54
Cited by
6
References
1
Claims

Claims

exact text as granted — not AI-modified
CLAIM 
     
       The ornamental design for a rigid coaxial rotor helicopter with dual auxiliary propulsion, as shown and described.

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