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Patentes

Citada por

Patente citante Fecha de presentación Fecha de emisión Cesionario original Título
US430888627 Nov 19795 Ene 1982Handley Industries, Inc.Curb box
US491512512 Oct 198910 Abr 1990Asahi/America, Inc.Valve stem extension assembly
US604459030 Oct 19964 Abr 2000Liquid infiltration prevention structures for preventing liquid infiltration manhole assemblies
US62269298 Dic 19998 May 2001Liquid infiltration prevention structures for preventing liquid infiltration manhole assemblies gate value sealing structures for preventing settling or shifting of key box bonnets and method for using said structures
US644990825 Ene 200117 Sep 2002Gate valve box sealing
US757501821 Abr 200318 Ago 2009Alignment device for valve bonnet
US77034741 Sep 200527 Abr 2010Adaptor, Inc.Gate valve sealing structure
USD5469241 Sep 200517 Jul 2007Adaptor, Inc.Gate valve sealing structure
USD5483091 Sep 20057 Ago 2007Adaptor, Inc.Gate valve sealing structure
USD57710619 Sep 200616 Sep 2008Adaptor, Inc.Gate valve sealing structure
USD58306723 Feb 200516 Dic 2008Adaptor, Inc.Manhole assembly gate valve sealing structure

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