Chem Pro

Also on record

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

Showing 1 to 9 of 9 · Back to Chem Pro

Patent	Title	Status	Expires	Confidence
US 7,875,150	Papermaking additive Formerly held In force Term ends Oct 1, 2027 · From the USPTO record	In force	Term ends Oct 1, 2027	From the USPTO record
US 6,620,092	Process and apparatus for vitrification of hazardous waste materials Lapsed on the fee record Ended Sep 16, 2015 · From the USPTO record	Lapsed on the fee record	Ended Sep 16, 2015	From the USPTO record
US 4,097,395	Mold and mildew removal composition and method of manufacture Term ended Term ended no later than Jun 27, 1998 · Low confidence	Term ended	Term ended no later than Jun 27, 1998	Low confidence
US 4,221,667	Whirlfilter Formerly held Term ended Term ended no later than Sep 9, 2000 · Low confidence	Term ended	Term ended no later than Sep 9, 2000	Low confidence
US 4,482,377	Separation of zinc from a zinc-copper alloy Term ended Term ended no later than Nov 13, 2004 · Low confidence	Term ended	Term ended no later than Nov 13, 2004	Low confidence
US 4,962,892	Mobile material distribution apparatus Formerly held Term ended Term ended no later than Oct 16, 2010 · Low confidence	Term ended	Term ended no later than Oct 16, 2010	Low confidence
US 5,534,124	On-site electrochemical dehalogenation process and system Term ended Term ended no later than Jul 9, 2016 · Low confidence	Term ended	Term ended no later than Jul 9, 2016	Low confidence
US 5,728,236	Process for producing an ornamental rust finish on a ferrous metal surface Term ended Term ended no later than Mar 17, 2018 · Low confidence	Term ended	Term ended no later than Mar 17, 2018	Low confidence
US 5,962,809	Apparatus and method for protecting underground cables Term ended Term ended no later than Oct 5, 2019 · Low confidence	Term ended	Term ended no later than Oct 5, 2019	Low confidence