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Patentes

Citada por

Patente citante Fecha de presentación Fecha de emisión Cesionario original Título
US44554571 Jun 198219 Jun 1984Tokumi Denshi Kogyo Kabushiki KaishaAdjuster means for headset
US580957415 Ago 199622 Sep 1998Cabot Safety Intermediate CorporationHearing protection device
US598339910 Dic 199716 Nov 1999Cabot Safety Intermediate CorporationHearing protection device
US600636124 Abr 199828 Dic 1999Cabot Safety Intemediate CorporationHearing protection device
US602152615 Abr 19988 Feb 2000Cabot Safety Intermeidate CorporationHearing protection device
US649914621 Dic 200131 Dic 2002Gray Matter Holdings LLCEar protection device
US650224718 Oct 20017 Ene 2003Gray Matter Holdings LLCApparatus and method for making an ear warmer having interior seams
US65022487 Nov 20017 Ene 2003Gray Matter Holdings LLCApparatus and method for making an ear warmer and an ear warmer frame
US67249067 May 200220 Abr 2004Adjustable headphone
US673578428 Ene 200218 May 2004180s, Inc.Apparatus and method for making an ear warmer and an ear warmer frame
US688017430 Dic 200219 Abr 2005180s, Inc.Ear protection device
US69206453 Ene 200326 Jul 2005180s, Inc.Apparatus and method for making an ear warmer and an ear warmer frame
US69784839 Abr 200427 Dic 2005180s, Inc.Apparatus and method for making an ear warmer and an ear warmer frame
US721017318 Abr 20051 May 2007180s, Inc.Ear protection device
US721264512 Ago 20031 May 2007180s, Inc.Ear warmer with a speaker system
US722237312 Ago 200329 May 2007180s, Inc.Ear warmer having a membrane forming a receptacle
US76140913 Ene 200710 Nov 2009180s, Inc.Apparatus and method for making an ear warmer and an ear warmer frame
US76175436 Jun 200717 Nov 2009180s, Inc.Apparatus and method for making an ear warmer and an ear warmer frame
US765064912 Ago 200326 Ene 2010180s, Inc.Ear warmer having an external frame
US796297027 Oct 200321 Jun 2011180s, Inc.Ear warmer having a curved ear portion
US799692327 Dic 200516 Ago 2011180s, Inc.Apparatus and method for making an ear warmer and an ear warmer frame
USD37582518 Oct 199426 Nov 1996Headband with detachable ear piece
USD4452408 Nov 200024 Jul 2001Dalloz Safety ABHeadband for earmuffs
USD54148212 Mar 200424 Abr 2007180s, Inc.Ear warmer having an external frame
USD54500112 Mar 200419 Jun 2007180s, Inc.Ear warmer having an external frame
USD63389527 Ene 20108 Mar 2011Sony CorporationHeadphone

Dibujos