发明授权
US2526639A Polymeric materials from formaldehyde and a hydrogenated butadiene-1, 3-acrylonitrile copolymer
失效
来自甲醛和氢化丁二烯-1,3-丙烯腈共聚物的聚合材料
- 专利标题: Polymeric materials from formaldehyde and a hydrogenated butadiene-1, 3-acrylonitrile copolymer
- 专利标题(中): 来自甲醛和氢化丁二烯-1,3-丙烯腈共聚物的聚合材料
-
申请号: US10804249申请日: 1949-08-01
-
公开(公告)号: US2526639A公开(公告)日: 1950-10-24
- 发明人: CUPERY MARTIN E
- 申请人: DU PONT
- 专利权人: University of North Carolina,MCNC
- 当前专利权人: University of North Carolina,MCNC
- 优先权: US10804249 1949-08-01
- 主分类号: C08G12/46
- IPC分类号: C08G12/46
公开/授权文献
- US07082075B2 Memory device and method having banks of different sizes 公开/授权日:2006-07-25