Dowa Company, Ltd.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5279213 Apparatus for producing prepared foods by electrical conductionExpiredAug 20, 91Jan 18, 94[H05B]
5058192 Method of and apparatus for preparing foods by utilizing electric heatingExpiredMay 31, 90Oct 15, 91[F24C]
4971819 Method of preparing foods by utilizing electric heatingExpiredJan 19, 90Nov 20, 90[A23L, H05B]
4913854 Water warming method and apparatus thereforExpiredDec 23, 88Apr 03, 90[B01F]
4828975 Fuel gasifying burnerExpiredJan 21, 88May 09, 89[F23D]
4813865 Fuel gasifying burnerExpiredJan 21, 88Mar 21, 89[F23D]
4612199 Method of and apparatus for producing processed foodstuffs by passing an electric currentExpiredMar 25, 85Sep 16, 86[A23L, A61L]
4551089 Evaporation burnerExpiredJul 30, 84Nov 05, 85[F23D]
4529375 Fuel gasifying burnerExpiredJun 18, 84Jul 16, 85[F23D]
4522834 Method of and apparatus for producing electrically processed foodstuffsExpiredMay 17, 84Jun 11, 85[A23L, H05B, G01N]
4516931 Fuel gasifying burnerExpiredNov 21, 83May 14, 85[F23D]
4496594 Method of heating and packaging foodExpiredOct 14, 83Jan 29, 85[A23L]
4386905 Liquid fuel gasifying burnerExpiredDec 18, 80Jun 07, 83[F23D]
4247282 Liquid fuel burner for burning liquid fuel in gasified formExpiredMay 23, 79Jan 27, 81[F23D]

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