X Corp. is suing Operation Bluebird, a recently-announced startup that aims to reclaim the Twitter brand for a new social network. In a lawsuit filed on Tuesday, the Elon Musk-owned company alleges Operation Bluebird is "brazenly attempting to steal" Twitter's trademarks, claiming "Twitter never left and continues to be exclusively owned by X Corp."

Last week, Operation Bluebird filed a petition asking the US Patent and Trademark Office (USPTO) to cancel X Corp.'s ownership of the "Twitter" and "Tweet" trademarks. It alleged X Corp. "legally abandoned its rights" to Twitter's brand with "no intention to resume use." At the same time, Operat …

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