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Legal status
Patent lapsed (non-payment of fees)
| (51) | INT.CL.: (2006.01) |
D21C 9/10 D21C 9/147 D21C 9/16 |
| (11) | Number of the document | 3269 |
| (13) | Kind of document | B |
| (21) | Application number | IP444 |
| (22) | Date of filing the application | 1993-03-19 |
| (41) | Date of publication of the application | 1994-11-25 |
| (45) | Date of publication of patent | 1995-05-25 |
| (30) | Number | Date | Country code |
| 8902058 | 1989-06-06 | SE | |
| 9001448 | 1990-04-23 | SE | |
| 4830158 | 1990-06-05 | SU |
| (71) |
Eka Nobel AB,
S-445 80 Bohus,
SE
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| (72) |
Jiri J. BASTA, SE
Lillemor K. HOLTINGER, SE Marie R. SAMUELSSON, SE Per G. LUNDGREN, SE |
| (73) |
Eka Nobel AB,
S-445 80 Bohus,
SE
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| (74) |
Marius JAKULIS - JASON,
AAA Law, A. Goštauto g. 40B, Verslo centras "Dvyniai", LT-03163 Vilnius,
LT
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| (54) | PROCESS FOR BLEACHING OF LIGNOCELLULOSE-CONTAINING PULPS |
| Payment date | Validity (years) | Amount | |
| 2002-02-15 | 10 | 800.00 LTL |
| Patent lapsed (non-payment of fees) | ||
| Invalidation date | 2003-03-19 |