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Legal status
Patent lapsed (non-payment of fees)
| (51) | INT.CL.: (2006.01) |
C08F 4/00 C08F 126/00 |
| (11) | Number of the document | 4490 |
| (13) | Kind of document | B |
| (21) | Application number | 98-059 |
| (22) | Date of filing the application | 1998-04-22 |
| (41) | Date of publication of the application | 1998-12-28 |
| (45) | Date of publication of patent | 1999-04-26 |
| (71) |
Kauno technologijos universitetas,
K. Donelaičio g. 73, 3006 Kaunas,
LT
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| (72) |
Edita MAŽONIENĖ, LT
Rima Julė ŽEMAITAITIENĖ, LT |
| (73) |
Kauno technologijos universitetas,
K. Donelaičio g. 73, 3006 Kaunas,
LT
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| (74) |
| (54) | PROCESS FOR PREPARING CATIONIC FLOCKULANT |
| Payment date | Validity (years) | Amount | |
| 2000-04-17 | 3 | 210.00 LTL |
| Patent lapsed (non-payment of fees) | ||
| Invalidation date | 2001-04-22 |