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Legal status
Patent lapsed (non-payment of fees)
| (51) | INT.CL.: (2006.01) |
B01D 46/02 |
| (11) | Number of the document | 3720 |
| (13) | Kind of document | B |
| (21) | Application number | IP1100 |
| (22) | Date of filing the application | 1993-09-23 |
| (41) | Date of publication of the application | 1995-04-25 |
| (45) | Date of publication of patent | 1996-02-26 |
| (71) |
Pranas BALTRĖNAS,
Gelvonų g. 42-17, 2010 Vilnius,
LT
Boris JURMANOV, Vitebskij pr. 63-174, 196233 Sankt-Peterburg, RU |
| (72) |
Pranas BALTRĖNAS, LT
Boris JURMANOV, RU |
| (73) |
Pranas BALTRĖNAS,
Gelvonų g. 42-17, 2010 Vilnius,
LT
Boris JURMANOV, Vitebskij pr. 63-174, 196233 Sankt-Peterburg, RU |
| (74) |
| (54) | AN AIR CLEANER |
| Payment date | Validity (years) | Amount | |
| 1996-11-25 | 4 | 72.00 LTL |
| Patent lapsed (non-payment of fees) | ||
| Invalidation date | 1997-09-23 |