UHR Corporation

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4909041 Residential heating, cooling and energy management systemExpiredJan 30, 89Mar 20, 90[F25D]
4809516 Residential heating cooling and energy management systemExpiredMar 13, 87Mar 07, 89[F25B, F25D]
4753080 Cold storage method and apparatusExpiredJul 07, 87Jun 28, 88[F25D]
4698978 Welded contact safety techniqueExpiredAug 26, 86Oct 13, 87[F25B]
4685307 Residential heating, cooling and energy management systemExpiredJul 25, 86Aug 11, 87[F25B]
4655051 Heat exchange system with reversing receiver flowExpiredNov 26, 85Apr 07, 87[F25B]
4645908 Residential heating, cooling and energy management systemExpiredJul 27, 84Feb 24, 87[F24D]

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