Rotor blade for toy helicopter
Cheng March 8, 2
U.S. patent number D633,956 [Application Number D/349,497] was granted by the patent office on 2011-03-08 for rotor blade for toy helicopter. Invention is credited to Randy Cheng.
| United States Patent | D633,956 |
| Cheng | March 8, 2011 |
Rotor blade for toy helicopter
Claims
CLAIM The ornamental design for a roter blade for toy helicopter, as shown and described.
| Inventors: | Cheng; Randy (San Gabriel, CA) |
|---|---|
| Appl. No.: | D/349,497 |
| Filed: | April 12, 2010 |
| Current U.S. Class: | D21/442; D21/453 |
| Current International Class: | 2101 |
| Field of Search: | ;D12/325-329,339-345 ;D21/441-442,447-453 ;244/17.11,17.13,17.19,17.23,17.25 ;446/34,36,230-232 |
References Cited [Referenced By]
U.S. Patent Documents
| 3124897 | March 1964 | Shapiro |
| 3722132 | March 1973 | Seefluth |
| 4718874 | January 1988 | Warren |
| D544825 | June 2007 | Van de Rostyne et al. |
| D561084 | February 2008 | Wai |
| D561085 | February 2008 | Wai |
| D561679 | February 2008 | Wai |
| D579403 | October 2008 | Van de Rostyne et al. |
| D582833 | December 2008 | Van De Rostyne et al. |
| D583297 | December 2008 | Van De Rostyne et al. |
Attorney, Agent or Firm: Chan; Raymond Y. David and Raymond Patent Firm
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.
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