Elon Musk’s X Corp. just scored a partial win in a Delaware courtroom, locking down the “Twitter” name while watching the word “Tweet” and the classic blue bird fly free. The rival startup Operation Bluebird, which had been testing under Twitter.now, wasted little time pivoting to Tweet.app after the September 3, 2026, ruling.
U.S. District Judge Colm F. Connolly of the District of Delaware granted X Corp. a preliminary injunction barring Operation Bluebird from using “Twitter” and related marks for any social networking platform. At the same time, the judge denied protection for “Tweet” and the bird logo, finding X had likely abandoned them. The case, X Corp. v. Operation Bluebird, Inc., remains active.
Musk bought Twitter for about $44 billion in 2022 and rebranded it X in 2023. He publicly declared the old brand’s days were numbered.
“Soon we shall bid adieu to the Twitter brand and, gradually, all the birds,”
He posted. He also talked about cutting the logo off the building with blow torches. Operation Bluebird, a Virginia startup led by trademark attorney Michael Peroff and President/General Counsel Stephen Coates (a former Twitter trademarks lawyer), seized on those statements. In late 2025 it petitioned the USPTO to cancel the marks, arguing abandonment, and prepared a rival platform focused on trust tools and user control. X sued in December 2025, insisting
“Twitter never left.”
Connolly found X still leveraged the Twitter name’s goodwill. The clincher was the Apple App Store listing for the X app, which opens with “Welcome to X (formerly known as Twitter)” in matching font size. That residual commercial use, plus ongoing consumer association, made consumer confusion likely and supported the injunction once X posted a $500,000 bond. Sites like twitter.new and twitter.now are covered until final judgment.
On “Tweet” and the bird, the judge saw it differently. Musk’s own words and the complete removal of those elements from the core platform showed discontinued bona fide use and no intent to resume.
“They kept the word. They let go of the bird, and they let go of the tweet,”
Coates said afterward. Bluebird promptly rebranded to Tweet.app, carrying over early handle requests and continuing its VERA verification features.
This fight matters beyond one billionaires rebrand. It shows how aggressively ditching a famous cultural brand can open unexpected legal doors and how residual goodwill, like a single App Store parenthetical, can still protect a name while other pieces of the old identity slip away. The underlying case heads toward trial, so the final chapter is still unwritten.
