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Legal status
Patent lapsed (non-payment of fees)
| (51) | INT.CL.: (2011.01) |
F01N 1/00 |
| (11) | Number of the document | 5935 |
| (13) | Kind of document | B |
| (21) | Application number | 2011 052 |
| (22) | Date of filing the application | 2011-06-03 |
| (41) | Date of publication of the application | 2012-12-27 |
| (45) | Date of publication of patent | 2013-05-27 |
| (71) |
Vilniaus Gedimino technikos universitetas,
Saulėtekio al. 11, LT-10223 Vilnius,
LT
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| (72) |
Donatas BUTKUS, LT
Tomas JANUŠEVIČIUS, LT |
| (73) |
Vilniaus Gedimino technikos universitetas,
Saulėtekio al. 11, LT-10223 Vilnius,
LT
|
| (74) |
| (54) | NOISE REDUCING SHUTTERS |
| Payment date | Validity (years) | Amount | |
| 2014-06-04 | 4 | 320.00 LTL |
| Patent lapsed (non-payment of fees) | ||
| Invalidation date | 2015-06-03 |