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|
Legal status
Patent lapsed (non-payment of fees)
| (51) | INT.CL.: (2006.01) |
E03F 5/10 E03C 1/12 E03F 3/04 E03F 5/04 F16L 11/00 F16L 21/02 F16L 25/00 F16L 43/00 F16L 45/00 F16L 47/00 |
| (11) | Number of the document | 4213 |
| (13) | Kind of document | B |
| (21) | Application number | 96-085 |
| (22) | Date of filing the application | 1996-06-10 |
| (41) | Date of publication of the application | 1997-03-25 |
| (45) | Date of publication of patent | 1997-09-25 |
| (86) | Number | PCT/GB94/02476 |
| Date | 1994-11-11 |
| (87) | Number | WO 95/13434 |
| Date | 1995-05-18 |
| (30) | Number | Date | Country code |
| 9323289 | 1993-11-11 | GB |
| (71) |
Hepworth Building Products Limited,
Hazlehead, Stocksbridge, Sheffield S30 5HG,
GB
|
| (72) |
Alan BROOK, GB
|
| (73) |
Hepworth Building Products Limited,
Hazlehead, Stocksbridge, Sheffield S30 5HG,
GB
|
| (74) |
Reda ŽABOLIENĖ,
METIDA, Verslo centras "VERTAS", Gynėjų g. 16, LT-01109 Vilnius,
LT
|
| (54) | DRAINAGE SYSTEM |
| Payment date | Validity (years) | Amount | |
| 1998-10-19 | 5 | 400.00 LTL |
| Patent lapsed (non-payment of fees) | ||
| Invalidation date | 1999-11-11 |