Helicopter propeller

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Description

FIG. 1 is a right side view of a helicopter propeller, showing my new design;

FIG. 2 is a right side perspective view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a left side perspective view thereof; and,

FIG. 5 is a top view thereof.

Claims

The ornamental design for a helicopter propeller, as shown and described.

Referenced Cited
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Other references
  • Photographic reference #1, helicopter.
  • Photographic reference #2, helicopter displaying writing in French on tail.
  • Photographic reference #3, explanation of the function of a flybar.
  • Photographic reference #4, toy helicopter, www.raidentech.com.
  • Photographic reference #5, toy helicopter.
  • Photographic reference #6, helicopter.
  • Photographic reference #7, helicopter with M40297 or MA0297 displayed on tail.
  • Photographic reference #8, toy helicopter #AHS-23900, hstoy.en.alibaba.com.
  • Photographic reference #9, toy helicopter, toys999.en.alibaba.com.
  • Mill, Colin. “Practical Theories, Part 9”, W3MH—World Wide Web Model Helicopter Magazine, Jul. 1996, http://www.w3mh.co.uk/articles/html/csm9-11.htm.
  • Day, David. “Moving Swashplates & CCPM”, 2001-2006. See http://www.iroquois.free-online.co.uk.
Patent History
Patent number: D561085
Type: Grant
Filed: Jul 16, 2007
Date of Patent: Feb 5, 2008
Assignee: Silverlit Toys Manufactory, Ltd. (Hong Kong)
Inventor: Chi Pok Billy Wai (Quarry Bay)
Primary Examiner: Charles A. Rademaker
Assistant Examiner: Maurice Stevens
Attorney: Greenberg Traurig, LLP
Application Number: 29/282,295
Classifications
Current U.S. Class: Element Or Attachment (9) (D12/345); Helicopter (D21/442)