Desowag Materialschutz GmbH

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5303502 Method and article for the preventive protection of materials against soil-dwelling pestsExpiredSep 30, 92Apr 19, 94[A01M]
5196407 Composition for preserving wood and wood materialsExpiredMay 22, 91Mar 23, 93[A01N]
5159778 Method and article for the preventive protection of materials against soil-dwelling pestsExpiredSep 10, 90Nov 03, 92[A01M]
4941356 Process for detecting insectsExpiredOct 28, 88Jul 17, 90[G01N]
4935457 Fiberboard method and compositionExpiredOct 22, 87Jun 19, 90[C07F, B29C]
4824484 Agent for preserving wood or wood-based materials and method for preparation and use thereofExpiredApr 28, 88Apr 25, 89[B05D, C09D]
4767458 Wood preservative composition and use thereofExpiredSep 15, 87Aug 30, 88[A01N, B05D, C09D, B27K]
4750934 Composition or concentrate for conserving wood and wood materialsExpiredAug 29, 86Jun 14, 88[C01D]
4337093 Wood preserving composition and method of using sameExpiredJul 03, 80Jun 29, 82[C09D]

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