Kabushiki Kaisha Risuron

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

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Patent	Title	Status	Expires	Confidence
US 4,859,516	Mat consisting of filament loop aggregations and method and apparatus for producing the same Term ended Term ended no later than Aug 22, 2009 · Low confidence	Term ended	Term ended no later than Aug 22, 2009	Low confidence
US 4,913,757	Method of producing a mat consisting of filament loop aggregations Term ended Term ended no later than Apr 3, 2010 · Low confidence	Term ended	Term ended no later than Apr 3, 2010	Low confidence
US 4,952,265	Mat consisting of filament loop aggregations and method and apparatus for producing the same Term ended Term ended no later than Aug 28, 2010 · Low confidence	Term ended	Term ended no later than Aug 28, 2010	Low confidence
US 5,464,491	Method of producing mat comprising filament loop aggregate Term ended Term ended no later than Nov 7, 2015 · Low confidence	Term ended	Term ended no later than Nov 7, 2015	Low confidence
US D352,630	Door mat Term ended	Term ended
US D358,520	Door mat Term ended	Term ended