As of September 9/22/2015, no live official trademarks were found on USPTO.gov for the exact term
As typos go, this is a fine one, with that "uu."
There are downsides, of course, to brandable typos of real words, but this one is short and memorable -- and it looks good visually.
We feel that this could be developed into a website selling children's clothes or games -- anything designed to keep kids busy, entertained, and educated.
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