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Patentes

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Patente citante Fecha de presentación Fecha de emisión Cesionario original Título
US40359408 Ene 197619 Jul 1977Micknel Manufacturing Inc.Sign construction
US412794812 Sep 19775 Dic 1978Mattel, Inc.Play desk
US431372730 Nov 19792 Feb 1982Educational frame device having a rotatable body and rotatable symbol-bearing inserts
US52638663 Sep 199223 Nov 1993Game board apparatus
US539323215 Nov 199328 Feb 1995Visual aid system
US547601627 Oct 199319 Dic 1995Board of Regents of the University of NebraskaApparatus for annotating data on an assay medium
US60215935 Mar 19988 Feb 2000Outdoor advertising sign
US711427812 May 20043 Oct 2006Personalized picture frame assembly
US771222621 Sep 200711 May 2010Grid system apparatus
US79343301 Ago 20053 May 2011System for hanging different items on walls
US80157378 Feb 200113 Sep 2011Barrier cover
USD43612820 Dic 19999 Ene 2001WKB Wirtschafts-und Konzeptberatung GmbHCombined blackboard and tray
USD59406230 Oct 20079 Jun 2009ACCO Brands USA LLCDisplay board