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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 | 3844 |
| (13) | Kind of document | B |
| (21) | Application number | IP1880 |
| (22) | Date of filing the application | 1994-02-22 |
| (41) | Date of publication of the application | 1995-09-25 |
| (45) | Date of publication of patent | 1996-04-25 |
| (71) |
Piotr ZACHAROV,
Kalnalaukio g. 26-28, 4100 Širvintos,
LT
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| (72) |
Piotr ZACHAROV, LT
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| (73) |
Piotr ZACHAROV,
Kalnalaukio g. 26-28, 4100 Širvintos,
LT
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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 TREATMENT OF WASTE WATER OR SEWAGE |
| Payment date | Validity (years) | Amount | |
| 1996-01-04 | 3 | 39.00 LTL |
| Patent lapsed (non-payment of fees) | ||
| Invalidation date | 1997-02-22 |