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Legal status
Patent lapsed (non-payment of fees)
| (51) | INT.CL.: (2006.01) |
C07C 303/00 C11D 3/34 |
| (11) | Number of the document | 2037 |
| (13) | Kind of document | B |
| (21) | Application number | RP208 |
| (22) | Date of filing the application | 1992-08-28 |
| (41) | Date of publication of the application | |
| (45) | Date of publication of patent | 1993-05-15 |
| (86) | Number | 1266469 |
| Date | 1981-08-28 |
| (30) | Number | Date | Country code |
| 8028077 | 1980-08-29 | GB |
| (71) |
Exxon Research and Engineering Company,
Florham Park, New Jersey,
US
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| (72) |
Alain Louis Pierre LENACK, FR
Robert TIRTIAUX, FR |
| (73) |
Exxon Research and Engineering Company,
Florham Park, New Jersey,
US
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| (74) |
Vytautas DOVYDĖNAS,
V. Grybo g. 41-38, LT-10320 Vilnius,
LT
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| (54) |
| Payment date | Validity (years) | Amount | |
| 1994-07-11 | 5 | 250.00 USD |
| Patent lapsed (non-payment of fees) | ||
| Invalidation date | 1995-08-28 |