NATIONAL HOUSE INDUSTRIAL CO., LTD.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5168008 Glazed cement product and method for manufacturing thereofExpiredJun 05, 90Dec 01, 92[B28B, C04B, B32B]
5143952 Process for the production of cement-synthetic polymer composite molded bodiesExpiredSep 27, 91Sep 01, 92[C08J]
5059371 Method and apparatus for extrusion molding fiber-and cement-containing W/O type emulsionExpiredApr 15, 87Oct 22, 91[B29C]
4822541 Method of producing a porous ceramic panelExpiredOct 13, 87Apr 18, 89[B29C]
4797319 Glazed cement product and method for manufacturing thereofExpiredJan 06, 86Jan 10, 89[B29C, C04B, B32B]
4756956 Foamed ceramic panel and method of producing the sameExpiredOct 02, 87Jul 12, 88[B32B]
4657206 Door installation and a locking device used thereinExpiredMay 31, 83Apr 14, 87[E05C]
4613649 Process for producing plastic concreteExpiredJul 15, 85Sep 23, 86[C04B]
4504318 Process for producing plastic concreteExpiredOct 31, 83Mar 12, 85[C04B]

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