WETZEL, ALLMAN JANE

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4771763 Solar powered fluid heating systemExpiredOct 13, 87Sep 20, 88[F24J]
4615328 Solar powered fluid heating system having an improved thermal collector assemblyExpiredJan 14, 85Oct 07, 86[F24J]
4545365 Fluid heating system utilizing solar energy and waste heatExpiredDec 07, 83Oct 08, 85[F24J]
4512157 Solar powered fluid heating systemExpiredFeb 07, 83Apr 23, 85[F03G]
4483320 Solar powered fluid heating systemExpiredFeb 07, 83Nov 20, 84[F24J]

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