|
|
|
|
|
Legal status
Patent lapsed (non-payment of fees)
| (51) | INT.CL.: (2006.01) |
B09C 1/00 C02F 1/52 C02F 1/62 C02F 1/70 C02F 1/72 C02F 9/00 |
| (11) | Number of the document | 3475 |
| (13) | Kind of document | B |
| (21) | Application number | IP417 |
| (22) | Date of filing the application | 1993-03-15 |
| (41) | Date of publication of the application | 1994-10-25 |
| (45) | Date of publication of patent | 1995-10-25 |
| (30) | Number | Date | Country code |
| 9002355 | 1990-07-04 | SE | |
| PCT/SE91/00464 | 1991-06-26 | WO | |
| PCT/SE91/00464 | 1991-06-26 | WO |
| (71) |
PAREF AB,
Ragvaegen 4, S-183 67 Taeby,
SE
|
| (72) |
Rudolf Haekan MARTINELL, SE
|
| (73) |
PAREF AB,
Ragvaegen 4, S-183 67 Taeby,
SE
|
| (74) |
Marius JAKULIS - JASON,
AAA Law, A. Goštauto g. 40B, Verslo centras "Dvyniai", LT-03163 Vilnius,
LT
|
| (54) | A PROCESS FOR THE PURIFICATION OF WATER |
| Payment date | Validity (years) | Amount | |
| 1996-08-27 | 4 | 120.00 USD |
| Patent lapsed (non-payment of fees) | ||
| Invalidation date | 1997-03-15 |