|
|
|
|
|
Legal status
Patent lapsed (non-payment of fees)
| (51) | INT.CL.: (2006.01) |
F22B 37/00 |
| (11) | Number of the document | 4478 |
| (13) | Kind of document | B |
| (21) | Application number | 97-073 |
| (22) | Date of filing the application | 1997-04-22 |
| (41) | Date of publication of the application | 1998-10-26 |
| (45) | Date of publication of patent | 1999-03-25 |
| (71) |
KAEFER ERISTYSTEKNIIKKA OY,
Lehtimaeentie 15-19, 21290 Rusko,
FI
|
| (72) |
Juhani VAENTTINEN, FI
|
| (73) |
KAEFER ERISTYSTEKNIIKKA OY,
Lehtimaeentie 15-19, 21290 Rusko,
FI
|
| (74) |
Marius JAKULIS - JASON,
AAA Law, A. Goštauto g. 40B, Verslo centras "Dvyniai", LT-03163 Vilnius,
LT
|
| (54) | BOILER WALL CONSTRUCTION AND METHOD |
| Payment date | Validity (years) | Amount | |
| 1999-04-30 | 3 | 420.00 LTL |
| Patent lapsed (non-payment of fees) | ||
| Invalidation date | 2000-04-18 |