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Legal status
Patent lapsed (non-payment of fees)
| (51) | INT.CL.: (2006.01) |
E01F 5/00 |
| (11) | Number of the document | 5446 |
| (13) | Kind of document | B |
| (21) | Application number | 2005 113 |
| (22) | Date of filing the application | 2005-12-29 |
| (41) | Date of publication of the application | 2007-07-25 |
| (45) | Date of publication of patent | 2007-11-26 |
| (71) |
Vilniaus Gedimino technikos universitetas,
Saulėtekio al. 11, 10223 Vilnius,
LT
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| (72) |
Pranas BALTRĖNAS, LT
Agnė KAZLAUSKIENĖ, LT |
| (73) |
Vilniaus Gedimino technikos universitetas,
Saulėtekio al. 11, 10223 Vilnius,
LT
|
| (74) |
| (54) | SEEPAGE-GRASSY TRENCH |
| Payment date | Validity (years) | Amount | |
| 2010-12-30 | 6 | 480.00 LTL |
| Patent lapsed (non-payment of fees) | ||
| Invalidation date | 2011-12-29 |