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Legal status
Patent lapsed (non-payment of fees)
| (51) | INT.CL.: (2006.01) |
C02F 1/48 |
| (11) | Number of the document | 4323 |
| (13) | Kind of document | B |
| (21) | Application number | 96-051 |
| (22) | Date of filing the application | 1996-04-19 |
| (41) | Date of publication of the application | 1997-11-25 |
| (45) | Date of publication of patent | 1998-04-27 |
| (71) |
Wasser Barth Intlic GmbH,
Industriepark Magdeburger Strasse, Strasse A, Nr.10, 39245 Gommern,
DE
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| (72) |
Petr ZAKHAROV, DE
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| (73) |
Wasser Barth Intlic GmbH,
Industriepark Magdeburger Strasse, Strasse A, Nr.10, 39245 Gommern,
DE
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| (74) |
Liudmila GERASIMOVIČ,
IĮ "Liudmila Gerasimovič, Patentinis patikėtinis", Vingrių g. 13-42, LT-01141 Vilnius,
LT
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| (54) | METHOD FOR PURIFICATION OF WASTE WATER |
| Payment date | Validity (years) | Amount | |
| 1998-04-20 | 3 | 70.00 USD |
| Patent lapsed (non-payment of fees) | ||
| Invalidation date | 1999-04-19 |