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US3442898A
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Hydroxyaryl-pyrimidines,process for their preparation and their use
Assignee: BASF Schweiz AG
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Filing: 1964-05-04
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Granted: 1969-05-06
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Expires: 1984-05-04
Abstract
No abstract record available.
Inventors
- 👤 Christian Luethi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:55
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/26; C07D239/28; C07D239/30; C07D239/32; C07D239/34; C07D239/36; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3442; C08K5/3462; C08K5/36; C08K5/45; C08K5/46; C08K5/47; C08L; C08L21/00; C09; C09K; C09K15/00; C09K15/04; C09K15/30; C11; C11B; C11B5/00; C11B5/0042; C11B5/0064; D; D06; D06M; D06M13/00; D06M13/322; D06M13/35
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3361749A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-05 | 1972-11-04 | 1973-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-05 | 1976-11-04 | 1977-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-05 | 1980-11-04 | 1981-05-06 | $7700.00 | Window Closed / Lapsed |