See Twitter's inactive account policy here: http://support.twitter.com/groups/33-report-a-violation/topics/148-policy-information/articles/15362-inactive-accou

See Twitter's inactive account policy here: http://support.twitter.com/groups/33-report-a-violation/topics/148-policy-information/articles/15362-inactive-account-policy http://support.twitter.com/groups/33-report-a-violation/topi... In general though it looks like they would like you to have a serious claim to the mark (ie US or Intl registered trademark) before they'll hand it over.