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Legal status
Patent not validated
| (51) | INT.CL. | B32B 13/02 | |
| B32B 13/04 | |||
| C04B 28/14 | |||
| B32B 13/08 | |||
| B32B 13/14 | |||
| B32B 17/02 | |||
| B32B 29/00 | |||
| C04B 38/10 |
| (11) | Number of the document | 2101993 |
| (13) | Kind of document | T |
| (96) | European patent application number | 07852604.3 |
| Date of filing the European patent application | 2007-10-09 | |
| (97) | Date of publication of the European application | 2009-09-23 |
| (45) | Date of publication and mention of the grant of the patent | 2019-12-18 |
| (46) | Date of publication of the claims translation |
| (86) | Number | PCT/US2007/021573 |
| Date | 2007-10-09 |
| (87) | Number | WO 2008/063295 |
| Date | 2008-05-29 |
| (30) | Number | Date | Country code |
| 592481 | 2006-11-02 | US |
| (72) |
YU, Qiang, US
SONG, Weixin David, US
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| (73) |
United States Gypsum Company,
550 West Adams Street, Chicago, IL 60661-3676,
US
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| (54) | LOW DUST GYPSUM WALLBOARD |
| LOW DUST GYPSUM WALLBOARD |