Could the Phillies Lose the Phanatic?

In 1978, the Phillies teamed with Harrison/Erickson Incorporated to create what would become one of the most famous and beloved mascots in sports - the Phillie Phanatic.

When it came to working out a contract, H/E asked for a larger percentage of the money the Phanatic brought in and the last renegotiation took place in 1984. According to Deadspin (who broke down the lawsuit deeper than I will) the Phillies claim the 1984 contract gave them rights to the character and costume "forever," but H/E wants to void that contract and work on a new one, threatening to take the Phanatic to another team if the Phillies don't pay up.