[rbobby]

> Lego isn't interested in furthering either a custom or secondary market

Once Lego's patent expired it tried a fairly shady legal theory that the interconnect shapes were trademarked/trademarkable. They pursued this all the way to the Canadian Supreme Court where they lost unanimously.

http://www.smart-biggar.ca/en/articles_detail.cfm?news_id=15...

[jacquesm]

And justifiably so, especially since Lego had stolen the concept from an English company first.

https://en.wikipedia.org/wiki/Kiddicraft