What the Bluebird ruling tells us about "use it or lose it"

X Corp has just won an injunction, and lost a trademark, in the same ruling. 

Back in my earlier post, I discussed Operation Bluebird — the venture led by General Counsel Stephen Coates, formerly Twitter's own trademark lawyer — and its plan to launch under the Twitter name.

Bluebird's position was that X Corp had abandoned its rights in the TWITTER mark when Elon Musk rebranded the platform to X in 2023, a theory pursued on two fronts: an application to register TWITTER itself, and a petition to cancel X Corp.'s existing TWITTER and TWEET registrations. I noted at the time that X with far greater resources, was well placed to resist.

That dispute has now been tested before the court, with a result more instructive than a simple win or loss.

Developments since 

Bluebird did not wait for judgment: it launched in late August as Twitter.now. On 3–4 September, the U.S. District Court for Delaware handed down a split ruling on X Corp's application for a preliminary injunction. On "Twitter," the court found for X, and Bluebird is for now restrained from using it. On "Tweet," the court found Bluebird likely to succeed in showing X had abandoned the mark.

Neither side won outright — a reminder that disputes over names, domains, or brand assets rarely resolve cleanly, and are worth planning for on that basis. 

Within hours of the ruling, Bluebird rebranded its live platform from Twitter.now to Tweet.app, carrying over all handles and memberships without disruption — a clean transition made possible by not depending on a single name.

Bluebird says it will comply with the injunction on "Twitter" while litigation continues. It has not abandoned its claim to the name; its cancellation proceedings before the Trademark Trial and Appeal Board remain live for both marks. 

The underlying point 

The significant finding here is that the court considered X likely to have abandoned "Tweet" — not that Bluebird won the argument on the merits, but that X's own conduct let the right lapse. 

Trademark protection is not acquired once and held indefinitely; it depends on continued, genuine use, and neglect can leave even well-known rights exposed. 

Businesses holding old names or marks without active use, on the assumption that registration alone protects them, may want to test that assumption. A mark left on the register but absent from the market sits differently, in a court's eyes, to one in genuine use. 

The case is not concluded, and I will report further as it proceeds to trial.