U.S. patent number D524,230 [Application Number D/231,089] was granted by the patent office on 2006-07-04 for rigid coaxial rotor helicopter with auxiliary propulsion (large). This patent grant is currently assigned to Sikorsky Aircraft Corporation. Invention is credited to Brandon Stille, Michael P. Strauss, Matthew J. Tarascio, Steven D. Weiner.
United States Patent | D524,230 |
Stille , et al. | July 4, 2006 |
Inventors: | Stille; Brandon (Cheshire, CT), Weiner; Steven D. (Orange, CT), Strauss; Michael P. (New Haven, CT), Tarascio; Matthew J. (Milford, CT) |
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Assignee: | Sikorsky Aircraft Corporation
(Stratford, CT) |
Appl. No.: | D/231,089 |
Filed: | May 31, 2005 |
Current U.S. Class: | D12/327 |
Current International Class: | 1207 |
Field of Search: | ;D12/327-329 ;244/17.11,17.19,17.21 |
D357894 | May 1995 | Arnold et al. |
D361053 | August 1995 | Whyte et al. |
D363054 | October 1995 | Taylor et al. |
D375077 | October 1996 | Taylor et al. |
D388048 | December 1997 | Taylor et al. |
D425853 | May 2000 | Caporaletti |
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