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Facebook lawyers won't let Think Computers founder Aaron Greenspan use the company's name to market his new self-pubished book, Authoritas: One Student's Harvard Admissions and the Founding of the Facebook Era . These lawyers say it would violate Facebook's trademark. So Greenspan has petitioned the U.S. Patent and Trademark Office to cancel Facebook's claim to the name. The suit rehashes Greenspan's old arguments that Facebook founder Mark Zuckerberg stole his idea.

Think began using the term "The Facebook" to describe one of the components of its houseSYSTEM student portal at Harvard University in the summer of 2003. It launched the feature on September 19, 2003, several months before began accepting new users on February 4, 2004. was later incorporated as Facebook, Inc. Think CEO Aaron Greenspan, who authored the book in question, was classmates with Facebook, Inc. CEO Mark Zuckerberg at Harvard when both sites were on-line.