The W. B. Marvin Manufacturing Company

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Patent Activity in the Last 10 Years

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7013080 Space heater with area light sourceExpiredJan 16, 04Mar 14, 06[H05B]
RE34334 Convertible fan assemblyExpiredOct 04, 91Aug 03, 93[F24F]
D329692 Radiant heaterExpiredDec 19, 91Sep 22, 92[]
5118252 Intake grill for electric fan assemblyExpiredMay 24, 90Jun 02, 92[F01D]
D318915 Fan and grill support panel for a convertible fan assemblyExpiredAug 07, 89Aug 06, 91[]
D318526 Convertible fan unitExpiredAug 07, 89Jul 23, 91[]
D313468 Grill for a convertible fan assemblyExpiredAug 07, 89Jan 01, 91[]
4872399 Convertible fan assemblyExpiredAug 15, 88Oct 10, 89[F24F]

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