Buchmann Optical Engineering

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

Showing 1 to 7 of 7 · Back to Buchmann Optical Engineering

Patent	Title	Status	Expires	Confidence
US 5,263,285	Device for mounting an adapter on a lens blank Term ended Term ended no later than Nov 23, 2013 · Low confidence	Term ended	Term ended no later than Nov 23, 2013	Low confidence
US 5,307,150	Apparatus for automatically taking a reading of the shape and/or the profile of the inner contour of a frame rim of glasses Term ended Term ended no later than Apr 26, 2014 · Low confidence	Term ended	Term ended no later than Apr 26, 2014	Low confidence
US 5,321,915	Machines for grinding and bevelling opthalmic lenses Term ended Term ended no later than Jun 21, 2014 · Low confidence	Term ended	Term ended no later than Jun 21, 2014	Low confidence
US 5,371,974	Automatic machine for grinding and bevelling ophthalmic glasses Term ended Term ended no later than Dec 13, 2014 · Low confidence	Term ended	Term ended no later than Dec 13, 2014	Low confidence
US 5,460,562	Machine for grinding ophthalmic glasses Term ended Term ended no later than Oct 24, 2015 · Low confidence	Term ended	Term ended no later than Oct 24, 2015	Low confidence
US 5,554,067	Frame holder for prescription glasses Formerly held Term ended Term ended no later than Sep 10, 2016 · Low confidence	Term ended	Term ended no later than Sep 10, 2016	Low confidence
US 5,759,084	Grinding machine for ophthalmic glasses Formerly held Term ended Term ended no later than Jun 2, 2018 · Low confidence	Term ended	Term ended no later than Jun 2, 2018	Low confidence