Vertical axis wind turbine
The broken lines shown represent unclaimed subject matter and form no part of the claimed design.
Claims
The ornamental design for a vertical axis wind turbine, as shown and described.
Type: Grant
Filed: Apr 28, 2011
Date of Patent: Apr 2, 2013
Assignee: Ventulus Ltd. (Coventry, Warwickshire)
Inventors: Philip Bernard Wesby (Stratford-Upon-Avon), Christopher Turner (Hampshire)
Primary Examiner: Derrick Holland
Application Number: 29/390,723