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Legal status
Surrender of patent
| (51) | INT.CL.: (2006.01) |
C02F 3/28 |
| (11) | Number of the document | 3581 |
| (13) | Kind of document | B |
| (21) | Application number | IP2050 |
| (22) | Date of filing the application | 1994-10-05 |
| (41) | Date of publication of the application | 1995-04-25 |
| (45) | Date of publication of patent | 1995-12-27 |
| (71) |
Valstybinė akcinė įmonė "SEMA",
Respublikos g. 82, 5319 Panevėžys,
LT
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| (72) |
Gediminas SARGŪNAS, LT
Algis MATUZEVIČIUS, LT |
| (73) |
Akcinė bendrovė "SEMA",
Respublikos g. 82, 5319 Panevėžys,
LT
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| (74) |
| (54) | METHOD AND DEVICE FOR ANAEROBIC TREATMENT OF SEWAGE |
| Payment date | Validity (years) | Amount | |
| 2000-09-05 | 7 | 420.00 LTL |
| Surrender of patent | ||
| Invalidation date | 2001-10-05 |