Back in 2010, the US Patent and Trademark Office granted Citigroup a trademark for “thankyou,” which the company uses for credit card services. Today the company is suing AT&T over its own use of the terms “thanks” and “thanks AT&T.” Check the date, because this isn’t April Fool’s.

Source: Citigroup Is Suing AT&T For Using the Word ‘Thanks’ Because Citi Trademarked It

Uhm… some dick in a patent office decided to trademark a well known phrase because they dropped the space – and now they are using it as ammunition to go after people using a well used word? There is something rotten in the state of trademark.