I got a photo of it before its demolishment.

All Tesla Patents are now open source. The perfect summary: "Technology leadership is not defined by patents, which history has repeatedly shown to be small protection indeed against a determined competitor, but rather by the ability of a company to attract and motivate the world’s most talented engineers." (<a href="http://www.teslamotors.com/blog/all-our-patent-are-belong-you" rel="nofollow">Tesla Blog</a>)