Griswold Machine & Engineering, Inc.

Also on record

Records under this name other than patents Griswold Machine & Engineering, Inc. 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 Griswold Machine & Engineering, Inc.

Patent	Title	Status	Expires	Confidence
US 7,945,980	Bridge deck Formerly held Lapsed on the fee record Ended May 24, 2015 · From the USPTO record	Lapsed on the fee record	Ended May 24, 2015	From the USPTO record
US 7,074,002	Parts container with in and out conveyors driven in unison Lapsed on the fee record Ended Jul 11, 2010 · From the USPTO record	Lapsed on the fee record	Ended Jul 11, 2010	From the USPTO record
US 6,726,416	Die storage container Lapsed on the fee record Ended Apr 27, 2008 · From the USPTO record	Lapsed on the fee record	Ended Apr 27, 2008	From the USPTO record
US 3,992,887	Trench shoring assembly with force transferring accessory Term ended Term ended no later than Nov 23, 1996 · Low confidence	Term ended	Term ended no later than Nov 23, 1996	Low confidence
US 4,033,138	Trench shoring assembly with stacking accessory Term ended Term ended no later than Jul 5, 1997 · Low confidence	Term ended	Term ended no later than Jul 5, 1997	Low confidence
US 4,056,940	Trench box height adaptor Term ended Term ended no later than Nov 8, 1997 · Low confidence	Term ended	Term ended no later than Nov 8, 1997	Low confidence
US 4,471,646	Blood pressure cuff calibration system Term ended Term ended no later than Sep 18, 2004 · Low confidence	Term ended	Term ended no later than Sep 18, 2004	Low confidence
US 4,714,381	Machine for laying conduit and methods for use thereof Term ended Term ended no later than Dec 22, 2007 · Low confidence	Term ended	Term ended no later than Dec 22, 2007	Low confidence
US 4,741,646	Machine for laying conduct and methods for use thereof Term ended Term ended no later than May 3, 2008 · Low confidence	Term ended	Term ended no later than May 3, 2008	Low confidence