Rotor blade for toy helicopter

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Description

FIG. 1 is a perspective view of rotor blade for toy helicopter showing my new design.

FIG. 2 is a top view thereof.

FIG. 3 is a bottom view thereof.

FIG. 4 is a front end view thereof.

FIG. 5 is a rear end view thereof.

FIG. 6 is a left view thereof.

FIG. 7 is a right view thereof; and,

FIG. 8 is a perspective view of the new design thereof which is in use with a toy helicopter.

It is understood that the broken lines in the drawing are for illustrative purposes only and forms no part of the claimed design.

Claims

The ornamental design for a roter blade for toy helicopter, as shown and described.

Referenced Cited
U.S. Patent Documents
3124897 March 1964 Shapiro
3722132 March 1973 Seefluth
4718874 January 12, 1988 Warren
D544825 June 19, 2007 Van de Rostyne et al.
D561084 February 5, 2008 Wai
D561085 February 5, 2008 Wai
D561679 February 12, 2008 Wai
D579403 October 28, 2008 Van de Rostyne et al.
D582833 December 16, 2008 Van De Rostyne et al.
D583297 December 23, 2008 Van De Rostyne et al.
Patent History
Patent number: D633956
Type: Grant
Filed: Apr 12, 2010
Date of Patent: Mar 8, 2011
Inventor: Randy Cheng (San Gabriel, CA)
Primary Examiner: Sandra Morris
Attorney: David and Raymond Patent Firm
Application Number: 29/349,497
Classifications
Current U.S. Class: Helicopter (D21/442); Element Or Attachment (D21/453)