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Legal status
Patent lapsed (non-payment of fees)
| (51) | INT.CL.: (2006.01) |
G11B 7/24 |
| (11) | Number of the document | 2313 |
| (13) | Kind of document | B |
| (21) | Application number | RP1098 |
| (22) | Date of filing the application | 1993-09-23 |
| (41) | Date of publication of the application | |
| (45) | Date of publication of patent | 1993-12-15 |
| (86) | Number | 1326204 |
| Date | 1982-03-04 |
| (30) | Number | Date | Country code |
| 241000 | 1981-03-05 | US |
| (71) |
Minnesota Mining and Manufacturing Company,
P.O. Box 33427, 3M Center, St. Paul, Minnesota 55133,
US
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| (72) |
Sten Rutger GERFAST, US
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| (73) |
Minnesota Mining and Manufacturing Company,
P.O. Box 33427, 3M Center, St. Paul, Minnesota 55133,
US
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| (74) |
Liudmila GERASIMOVIČ,
IĮ "Liudmila Gerasimovič, Patentinis patikėtinis", Vingrių g. 13-42, LT-01141 Vilnius,
LT
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| (54) |
| Payment date | Validity (years) | Amount | |
| 1994-08-18 | 4 | 250.00 USD |
| Patent lapsed (non-payment of fees) | ||
| Invalidation date | 1995-09-23 |