Subsurface Technology Corp.

Also on record

Records under this name other than patents Subsurface Technology Corp. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.

Showing 1 to 3 of 3 · Back to Subsurface Technology Corp.

Patent	Title	Status	Expires	Confidence
US 5,334,336	Method of forming porous pipe using a blowing agent carrier component Formerly held Term ended Term ended no later than Aug 2, 2014 · Low confidence	Term ended	Term ended no later than Aug 2, 2014	Low confidence
US 5,462,092	Porous pipe and process for producing same Formerly held Term ended Term ended no later than Oct 31, 2015 · Low confidence	Term ended	Term ended no later than Oct 31, 2015	Low confidence
US 5,660,209	Porous pipe and process for producing same Formerly held Term ended Term ended no later than Aug 26, 2017 · Low confidence	Term ended	Term ended no later than Aug 26, 2017	Low confidence