Redland Roof Tiles Limited

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5106557 Process for the production of concrete building productsExpiredJun 07, 89Apr 21, 92[B28B, B29C]
4867626 Collation assembliesExpiredNov 18, 87Sep 19, 89[B65G]
4856395 Cutting mechanismsExpiredNov 19, 87Aug 15, 89[B26D, B28B]
4731963 Verge unit with frangible featureExpiredNov 07, 86Mar 22, 88[E04D]
4731969 Roof tilesExpiredSep 12, 85Mar 22, 88[E04D]
4712361 Collation assembliesExpiredJul 05, 85Dec 15, 87[B65G]
4695418 Method and apparatus for manufacturing roof tiles and tiles made therebyExpiredSep 12, 85Sep 22, 87[B28B]
4668151 Tile manufacturing apparatusExpiredJul 05, 85May 26, 87[B65G]
4661054 Tile manufacturing apparatusExpiredJul 05, 85Apr 28, 87[B29C]
4490600 Wire electrode spark erosionExpiredFeb 04, 82Dec 25, 84[B23P]
4470406 Roofing tile with thermal conduction deviceExpiredMay 14, 81Sep 11, 84[F24J]
4270330 Ridge batten bracketExpiredAug 21, 79Jun 02, 81[E04B]
4262466 Roofing tilesExpiredJan 29, 79Apr 21, 81[E04D]

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