The classic Amiga is finally free Amen brother!

[Twin]

cgutjahr is right - the "AMIGA" trademark is still alive. See here: http://tess2.uspto.gov/bin/showfield?f=doc&state=4006:9md8s7.3.14

Not sure if the link works, but the Trademark Serial Number is 73571532

Still well and truly alive and covers computers.

Also, Copyright isn't registrable - so you can't just go and copy kickstart code etc.

[Twin]

Amiga, Inc Delaware is the current owner of the US trademark.

If you search TESS (the USPTO trademark search system), find the AMIGA trademark and click the button called "ASSIGN Status", you can see the history of all the assignments lodged to the USPTO for the trademark.

KMOS, INC originally told the USPTO it had changed it's name to  Amiga Inc, Washington but then filed a corrective document stating the state and address was wrong. They corrected it to be Amiga, Inc Delaware.

The actual documentation filed is here (for the change of name to Amiga Inc, Delaware): http://assignments.uspto.gov/assignments/assignment-tm-3237-0792.pdf