MT PICTURE DISPLAY CO., LTD.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2008/0246,396 Electroluminescent ElementAbandonedApr 01, 05Oct 09, 08[H01J]
7385341 Cathode-ray tube apparatus with magnetic spacers between magnetic ringsExpiredMar 01, 05Jun 10, 08[]
7355331 Cathode-ray tube apparatusExpiredFeb 04, 05Apr 08, 08[H01J]
2008/0007,152 Electron emitting elementAbandonedJul 03, 07Jan 10, 08[H01J]
7315112 Color cathode-ray tube apparatusExpiredAug 19, 05Jan 01, 08[H01J]
7315113 Color cathode-ray tube and method for producing the sameExpiredOct 11, 05Jan 01, 08[H01J]
7312565 Color cathode ray tube apparatusExpiredSep 18, 06Dec 25, 07[H01J]
7307378 In-line type electron gun and color cathode ray tube apparatus using the sameExpiredJan 28, 05Dec 11, 07[H01J]
2007/0262,691 Color cathode-ray tube apparatusAbandonedMay 09, 07Nov 15, 07[H01J]
2007/0222,359 Color cathode-ray tube apparatusAbandonedFeb 07, 07Sep 27, 07[H01J]
7274135 Color picture tube apparatus with particular deflection yoke structureExpiredJan 05, 05Sep 25, 07[H01J]
7265484 Color picture tube with curved shadow maskExpiredMay 31, 05Sep 04, 07[H01J]
2007/0188,075 Field-emission electron source apparatusAbandonedFeb 13, 07Aug 16, 07[H01J]
2007/0182,305 Cathode-ray tube apparatusAbandonedJan 09, 07Aug 09, 07[H01J]
7242137 Cathode ray tube with cone having non-circular cross-sectionExpiredMay 31, 05Jul 10, 07[H01J]
2007/0126,332 Color picture tubeAbandonedNov 13, 06Jun 07, 07[H01J]
7227298 Color picture tube and method for manufacturing the sameExpiredDec 06, 05Jun 05, 07[H01J]
7227299 Color cathode-ray tubeExpiredJan 18, 05Jun 05, 07[H01J]
7227300 Projection tube apparatusExpiredFeb 08, 05Jun 05, 07[H01J]
7227302 Color cathode-ray tubeExpiredSep 21, 05Jun 05, 07[H01J]

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