The USPTO's Trademark Trial and Appeal Board issued a decision recently in a case involving a trademark application for the word mark "Purple Rain" in connection with an energy drink, filed by a company unrelated to the late performer, Prince.

Prince's estate filed an opposition to the trademark based on the proposed trademark creating a false suggestion of a connection to Prince.

In a fascinating decision, the TTAB agreed with Prince's estate and so the opposition to the proposed trademark registration was successful.

Today's episode of Business is More Exciting than any Game discusses what business entrepreneurs can learn from this decision.