WOOD FIBER INDUSTRIES, INC., 1 SOUTH WACKER DR., CHICAGO, ILL. 60606 A CORP. OF DE

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4,418,101 Method of making thermoplastic hardboard from acetylated matExpiredDec 27, 82Nov 29, 83[D21F, B32B]
4,411,738 Press cycle reduction for wet pressed hardboardExpiredApr 30, 82Oct 25, 83[D21H]
4,388,378 Thermoplastic hardboard from acetylated matExpiredDec 05, 80Jun 14, 83[D21F, B32B]
4,354,851 Method for making a decorated, water-resistant, rigid panel and the product made thereby: transfer dye process onto rigid panelExpiredFeb 17, 77Oct 19, 82[D06P]
4,289,554 Method for making a mobile home ceiling constructionExpiredMay 12, 80Sep 15, 81[B27F, B32B, E04B]
4,241,553 Mobile home ceiling construction and method for makingExpiredFeb 05, 79Dec 30, 80[E04B]
4,227,965 Production of hardboardExpiredJul 02, 79Oct 14, 80[D21B]

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