Helicopter rotors

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Description

FIG. 1 is a side elevation view of helicopter rotors, showing our new design;

FIG. 2 is an elevation of the side opposite that shown in FIG. 1;

FIG. 3 is a top perspective view thereof; and,

FIG. 4 is a top perspective view thereof.

Broken lines are for illustrative purposes only and form no part of the claimed design.

Claims

The ornamental design for helicopter rotors, as shown and described.

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Patent History
Patent number: D583297
Type: Grant
Filed: Oct 31, 2007
Date of Patent: Dec 23, 2008
Assignee: Silverlit Toys Manufactory Ltd. (Hong Kong)
Inventors: Alexander Jozef Magdalena Van De Rostyne (Bornum), Chi Pok Billy Wai (Causeway Bay)
Primary Examiner: Charles A. Rademaker
Assistant Examiner: Maurice Stevens
Attorney: Greenberg Traurig LLP
Application Number: 29/296,934
Classifications
Current U.S. Class: Element Or Attachment (9) (D12/345)