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Legal status
Patent not validated
| (51) | INT.CL. | C04B 20/06 | |
| C04B 28/14 |
| (11) | Number of the document | 2678290 |
| (13) | Kind of document | T |
| (96) | European patent application number | 12716775.7 |
| Date of filing the European patent application | 2012-02-24 | |
| (97) | Date of publication of the European application | 2014-01-01 |
| (45) | Date of publication and mention of the grant of the patent | 2018-08-29 |
| (46) | Date of publication of the claims translation |
| (86) | Number | PCT/US2012/026595 |
| Date | 2012-02-24 |
| (87) | Number | WO 2012/116313 |
| Date | 2012-08-30 |
| (30) | Number | Date | Country code |
| 201113035800 | 2011-02-25 | US |
| (72) |
YU, Qiang, US
SONG, Weixin David, US
VEERAMASUNENI, Srinivas, US
LUAN, Wenqi, 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 WEIGHT AND DENSITY FIRE-RESISTANT GYPSUM PANEL |
| LOW WEIGHT AND DENSITY FIRE-RESISTANT GYPSUM PANEL |