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Legal status
Patent lapsed (non-payment of fees)
| (51) | INT.CL.: (2006.01) |
C23C 22/00 C23C 22/05 |
| (11) | Number of the document | 4211 |
| (13) | Kind of document | B |
| (21) | Application number | 95-102 |
| (22) | Date of filing the application | 1995-10-04 |
| (41) | Date of publication of the application | 1997-04-25 |
| (45) | Date of publication of patent | 1997-09-25 |
| (71) |
Chemijos institutas,
A. Goštauto g. 9, 2600 Vilnius,
LT
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| (72) |
Vytautas Jurgis BUROKAS, LT
Aldona MARTUŠIENĖ, LT |
| (73) |
Chemijos institutas,
A. Goštauto g. 9, 2600 Vilnius,
LT
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| (74) |
Raimonda Algimanta SKUTELE,
Architektų g. 45-69, LT-04221 Vilnius,
LT
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| (54) | METHOD FOR THE FORMATION OF BLACK PHOSPHATIC COATING ON THE SURFACE OF STEEL |
| Payment date | Validity (years) | Amount | |
| 1998-10-01 | 4 | 80.00 LTL |
| Patent lapsed (non-payment of fees) | ||
| Invalidation date | 1999-10-04 |