|
|
|
|
|
Legal status
Patent lapsed (non-payment of fees)
| (51) | INT.CL.: (2006.01) |
B32B 5/06 C09K 3/10 E02D 31/00 |
| (11) | Number of the document | 3017 |
| (13) | Kind of document | B |
| (21) | Application number | IP470 |
| (22) | Date of filing the application | 1993-04-01 |
| (41) | Date of publication of the application | 1994-04-25 |
| (45) | Date of publication of patent | 1994-08-25 |
| (30) | Number | Date | Country code |
| 42 11 032.7 | 1992-04-02 | DE |
| (71) |
Naue-Fasertechnik GmbH and Co. KG,
Wartturmstrasse 1, D-4990 Luebbecke 1,
DE
|
| (72) |
Georg HEERTEN, DE
|
| (73) |
Naue-Fasertechnik GmbH and Co. KG,
Wartturmstrasse 1, D-4990 Luebbecke 1,
DE
|
| (74) |
Raimonda Algimanta SKUTELE,
Architektų g. 45-69, LT-04221 Vilnius,
LT
|
| (54) | METHOD FOR MAKING SEALING SHEETING OF SWELLABLE CLAY IMPERVIOUS TO WATER AND/OR OIL |
| Payment date | Validity (years) | Amount | |
| 1998-03-04 | 6 | 120.00 USD |
| Patent lapsed (non-payment of fees) | ||
| Invalidation date | 1999-04-01 |