Patent US3772289A successfully refreshed from Google Patents.
US3772289A
Expired / Lapsed
US
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Alkyl substituted benzyl pyrimidines
Assignee: SmithKline Beecham Corp
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Filing: 1971-04-16
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Granted: 1973-11-13
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Expires: 1991-04-16
Abstract
Abstract ANTIMALARIAL AND ANTIBACTERIAL COMPOUNDS OF THE FORMULA 2,6-DI(H2N-),5-((3-R1,4-R2,5-R3-PHENYL)-CH2-)PYRIMIDINE WHERE R1 AND R3 ARE THE SAME OR DIFFERENT AND EACH IS AN ALKYL GROUP HAVING FROM 2 TO 4 CARBON ATOMS, AND R2 IS AN ALKYL OR ALKOXY GROUP HAVING FROM 1 TO 12 CARBON ATOMS.
Inventors
- 👤 B Roth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:30
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/46; C07D239/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-12 | 1977-05-14 | 1977-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-12 | 1981-05-14 | 1981-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-12 | 1985-05-14 | 1985-11-13 | $7700.00 | Window Closed / Lapsed |