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Legal status
Patent lapsed (non-payment of fees)
| (51) | INT.CL.: (2006.01) |
C07D 243/00 C07D 403/00 C07D 405/00 C07D 491/00 |
| (11) | Number of the document | 4381 |
| (13) | Kind of document | B |
| (21) | Application number | 97-188 |
| (22) | Date of filing the application | 1997-12-03 |
| (41) | Date of publication of the application | 1998-04-27 |
| (45) | Date of publication of patent | 1998-09-25 |
| (86) | Number | PCT/US96/09021 |
| Date | 1996-06-06 |
| (87) | Number | WO 96/40652 |
| Date | 1996-12-19 |
| (30) | Number | Date | Country code |
| 481683 | 1995-06-07 | US |
| (71) |
THE DU PONT MERCK PHARMACEUTICAL COMPANY,
1007 Market Street, Wilmington, Delaware 19898,
US
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| (72) |
James David RODGERS, US
Jung Hui SUN, US |
| (73) |
DuPont Pharmaceuticals Company,
Chestnut Run Plaza, 974 Centre Road, Wilmington, Delaware 19805,
US
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| (74) |
Reda ŽABOLIENĖ,
METIDA, Verslo centras "VERTAS", Gynėjų g. 16, LT-01109 Vilnius,
LT
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| (54) | METHOD FOR PREPARING N-MONOSUBSTITUTED AND N,N'-DISUBSTITUTED UNSYMMETRICAL CYCLIC UREAS |
| Payment date | Validity (years) | Amount | |
| 2000-05-17 | 5 | 400.00 LTL |
| Patent lapsed (non-payment of fees) | ||
| Invalidation date | 2001-06-06 |