Northeast Utilities Service Company

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5263833 Fish guiding assembly and method utilizing sameExpiredApr 19, 93Nov 23, 93[E02B]
5032719 Source range field calibration fixtureExpiredFeb 27, 90Jul 16, 91[G12B, G01D]
4473535 Process for reducing nitric oxidesExpiredOct 16, 81Sep 25, 84[C01B, B01J]
4246234 Method and apparatus for reducing nitric oxideExpiredMay 26, 78Jan 20, 81[F01N, B01J, B01D]

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