Who could forget when Elon Musk bought Twitter and decided to burn the blue bird to ashes—rebranding one of the internet’s most recognizable names into a single, mysterious letter? The purchase didn’t come without a fight, and a lot of legal questions. But two years later, a very different legal thorn has popped up in Musk’s side: a dispute over whether he accidentally abandoned one of the most valuable trademarks in tech history.
Trademark Abandonment 101
Under U.S. law, a trademark is abandoned when its use has been discontinued and the owner intends not to resume use. Nonuse for three consecutive years is prima facie evidence of abandonment, which shifts the burden to the owner to show real plans to bring the mark back into commerce.
Once a mark is legally abandoned, it effectively drops into the public domain for those goods or services: the original owner loses exclusive rights, and others can adopt or register the same or a similar mark, subject to the usual confusion and priority rules. Courts and the USPTO, however, look hard at both sides of the equation: whether there was genuine nonuse, and whether there is evidence of an intent to resume use, such as business plans, licensing, or concrete preparations.
Rebranding alone does not automatically abandon the old name. Companies often maintain legacy marks through limited but bona fide use, coupled with ongoing registrations and documented plans to continue using the mark. Examples of bona fide use are maintaining a legacy product line, ongoing licensing, or keeping a branded domain in active use.
Twitter Becomes X – and a Target
When Elon Musk bought Twitter for roughly $44 billion and folded it into X Corp., the company did not just change ownership; it staged a high‑profile identity swap. In March 2023, Twitter, Inc. formally merged into X Corp., which became owner of the TWITTER, TWEET, and blue bird intellectual property portfolio.
In July 2023, Musk announced the company would soon “bid adieu” to the Twitter brand and “gradually, all the birds.” The service was rebranded as X with a new X logo. X stripped bird imagery from most user interfaces, renamed tweets, and began shifting traffic from twitter.com to x.com. At the same time, X quietly filed and maintained renewal papers for key TWITTER registrations, and the twitter.com domain continued to route users into the platform.
By late 2024, X’s use of “Twitter” was reduced but not gone: millions of users still entered through twitter.com, older apps still displayed the bird logo, and third‑party sites continued to use old Twitter favicons to link to X profiles. Those lingering uses would later become X’s answer to a looming question: had the company merely rebranded, or had it legally abandoned one of tech’s most recognizable names?
The New Lawsuit
That question recently landed in federal court. Earlier this month, Bluebird asked the Trademark Trial and Appeal Board to cancel X’s TWITTER and TWEET registrations, claiming X had “legally abandoned” the marks by rebranding, removing bird imagery, and moving users to x.com.
Operation Bluebird’s site promotes an AI‑driven public square branded as TWITTER.new. It uses the TWITTER name, a familiar blue color scheme, and a blue bird logo — all of which X says look confusingly like its own designs. The startup’s founders (including former Twitter IP counsel Stephen Coates) built a portfolio of TWITTER and TWEET filings. They bought suspended applications made right after the X rebrand, then filed new ones while launching TWITTER.new and asking to cancel X’s registrations.
X’s lawsuit calls this a deliberate “heist” of the Twitter brand, not a good‑faith revival of an abandoned one. The company argues that consumers are already confused, citing people asking if they can transfer X handles to TWITTER.new and news outlets saying Bluebird plans to “bring Twitter back.”
Legally, X brings eight claims, including trademark infringement, unfair competition, counterfeiting, dilution, deceptive trade practices, and copyright infringement over the bird logo. It wants an injunction blocking any use of TWITTER or TWEET, an order telling the USPTO to deny Bluebird’s filings, and damages for alleged counterfeiting and infringement.
At the core, X insists “Twitter never left.” It says millions still log in through twitter.com, many still use the old app and branding, and the company continues to maintain its registrations. Bluebird counters that the brand is dead, pointing to Musk’s goodbye post, the removal of bird logos, and the x.com migration as proof that X walked away and left the name up for grabs.
What Comes Next for “Twitter”?
Both the TTAB cancellation case and X’s Delaware lawsuit are in early stages, and there is no ruling yet on whether Twitter was actually abandoned. Expect the litigation to turn on granular evidence of use, as well as Musk’s own public statements about killing the bird. Courts will soon be asked to decide whether this was a dramatic rebrand or a legal goodbye that opened the door to TWITTER.new.
