PhatNoise is obviously owned by Harman. Whilst PhatNoise are no longer a 'trading business', I cannot find anything on the SEC which indicates that PhatNoise as an entity no longer exists.
http://www.sec.gov/cgi-bin/browse-edgar?company=phatnoise&match=&CIK=&filenum=&State=&Country=&SIC=&owner=exclude&Find=Find+Companies&action=getcompanyI had a look into Copyright agreements as a result of what you were asking:
What is the duration of a copyright?
For works created in the United States, on or after January 1, 1978, copyright extends through the life of the author plus 70 years.
...which includes software (source:
http://lib.gccaz.edu/lmc/help/copyrightguide.html)
I fired off an e-mail to Harman to see if we can get some intelligent life to answer some questions....