US3822264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Certain 2,4-diamino-5-benzyl-6-alkylthiopyrimidines
Assignee: SmithKline Beecham Corp
•
Filing: 1972-04-12
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Granted: 1974-07-02
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Expires: 1992-04-12
Abstract
Abstract THIS INVENTION IS DIRECT TO 2,4-DIAMINO-5-BENZYLPYRIMIDINE COMPOUNDS HAVING A 6-ALKYL THIO GROUP AND TO METHODS OF CONVERTING THIS COMPOUND TO 2,4-DIAMINO5-BENZYLPYRIMIDINE COMPOUNDS HAVING USEFUL ANTIBACTERIAL AND OTHER USEFUL PROPERTIES AS INTERMEDIATES.
Inventors
- 👤 B Roth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:53
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/46; C07D239/48; C07D239/49; H; H10; H10W; H10W72/00; H10W72/30; H10W72/381
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) | 1977-07-01 | 1977-12-31 | 1978-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-01 | 1981-12-31 | 1982-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-01 | 1985-12-31 | 1986-07-02 | $7700.00 | Window Closed / Lapsed |