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Legal status
Patent lapsed (non-payment of fees)
| (51) | INT.CL.: (2006.01) |
F28D 21/00 |
| (11) | Number of the document | 3862 |
| (13) | Kind of document | B |
| (21) | Application number | 95-014 |
| (22) | Date of filing the application | 1995-02-07 |
| (41) | Date of publication of the application | 1995-11-27 |
| (45) | Date of publication of patent | 1996-04-25 |
| (71) |
Ne pelno įmonė "Zubcovo kampanija",
Architektų g. 176-42, 2049 Vilnius,
LT
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| (72) |
Valerijus ZUBCOVAS, LT
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| (73) |
Ne pelno įmonė "Zubcovo kampanija",
Architektų g. 176-42, 2049 Vilnius,
LT
|
| (74) |
| (54) | HEAT-EXCHANGE APPARATUS |
| Payment date | Validity (years) | Amount | |
| 1997-06-18 | 3 | 64.00 LTL |
| Patent lapsed (non-payment of fees) | ||
| Invalidation date | 1998-02-07 |