DE68903336D1 - COMPOSITE MEMBRANE. - Google Patents
COMPOSITE MEMBRANE.Info
- Publication number
- DE68903336D1 DE68903336D1 DE8989910035T DE68903336T DE68903336D1 DE 68903336 D1 DE68903336 D1 DE 68903336D1 DE 8989910035 T DE8989910035 T DE 8989910035T DE 68903336 T DE68903336 T DE 68903336T DE 68903336 D1 DE68903336 D1 DE 68903336D1
- Authority
- DE
- Germany
- Prior art keywords
- composite membrane
- membrane
- composite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/206,884 US4902308A (en) | 1988-06-15 | 1988-06-15 | Composite membrane |
PCT/US1989/002617 WO1989012490A2 (en) | 1988-06-15 | 1989-06-15 | Composite membrane |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68903336D1 true DE68903336D1 (en) | 1992-12-03 |
DE68903336T2 DE68903336T2 (en) | 1993-05-06 |
Family
ID=26779755
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1989603336 Expired - Fee Related DE68903336T2 (en) | 1988-06-15 | 1989-06-15 | COMPOSITE MEMBRANE. |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE68903336T2 (en) |
HK (1) | HK128493A (en) |
-
1989
- 1989-06-15 DE DE1989603336 patent/DE68903336T2/en not_active Expired - Fee Related
-
1993
- 1993-11-18 HK HK128493A patent/HK128493A/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE68903336T2 (en) | 1993-05-06 |
HK128493A (en) | 1993-11-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |