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Patentes

Citada por

Patente citante Fecha de presentación Fecha de emisión Cesionario original Título
US402180916 Oct 19753 May 1977Afco Products IncorporatedAntenna couplings
US410602522 Oct 19768 Ago 1978Coupling converter for vehicle antennas
US446890414 Abr 19834 Sep 1984Multi-stage extendable tower
US464793416 Abr 19853 Mar 1987Harada Kogyo Kabushiki KaishaMultistage extensible rod antenna
US493217619 Sep 198812 Jun 1990GTE Government Systems CorporationExtendible and retractible mast system
US52587724 Nov 19912 Nov 1993Matsushita Electric Industrial Co., Ltd.Antenna device
US53334222 Dic 19922 Ago 1994The United States of America as represented by the United States Department of EnergyLightweight extendable and retractable pole
US567096821 Jul 199323 Sep 1997Matsushita Electric Industrial Co., Ltd.Retractable flexible transmit/receive antenna which operates in a collapsed and extended position
US603463922 Dic 19977 Mar 2000T & M AntennasRetractable antenna for portable communicator
US723450212 Oct 200426 Jun 2007Overhead door apparatus with enclosed counterbalance mechanism