In September 2007, during a lawsuit with patent holding company Burst.com, Apple drew attention to a patent for a similar device that was developed in 1979. Kane Kramer applied for a UK patent for his design of a "plastic music box" in 1981, which he called the IXI. He was unable to secure funding to renew the US$120,000 worldwide patent, so it lapsed and Kramer never profited from his idea.
Apple was involved in a lawsuit with which company in 2007? Who previously applied for a patent for an iPod-like device? In what country did Kane Kramer apply for his patent? In what year did Kane Kramer apply for his patent? What did Kane Kramer call the device for which he wanted a patent? What patent holding company sued Apple in 2007? What was the name of the previously-patented music player from 1981? Who was the holder of the previous patent for the "plastic music box"?