NeoGAF and IGN Forums reports that Microsoft recently let the trademark on a couple games expire, specifically speaking Voodoo Vince and Blinx.
Microsoft’s trademark on Voodoo Vince expired this past weekend, and Blinx got cancelled the day after Christmas 2014.
Phil Spencer had previously mentioned in an interview with Larry “Major Nelson” Hyrb that Voodoo Vince was his favorite game to work on.