US3740394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thiazolo and thiazino pyrimidines
Assignee: Individual
•
Filing: 1970-06-29
•
Granted: 1973-06-19
•
Expires: 1990-06-29
Abstract
Abstract COMPOUNDS OF FORMULA: 2,3-(-S-(CH2)N-),4-R1,4-R2,5-R,6-R3,6-R4-3,4,5,6-TETRA- IN WHICH N IS 2 OR 3, R IS HYDROGEN OR TOGETHER WITH R3, FORMS A DOUBLE BOND, R1 IS HYDROGEN OR A LOWER ALKYL GROUP, R2 AND R4 ARE EACH HYDROGEN, LOWER ALKYL GROUP, A PHENYL GROUP OPTIONALLY SUBSTITUTED THIENYL OR PYRIDYL, AND R3 IS HYDROXYL OR, TOGETHER WITH R, FORMS A DOUBLE BOND. THESE COMPOUNDS AND THEIR SALTS ARE THERAPEUTICALLY ACTIVE, IN PARTICULAR AS ANTINFLAMMATORY DRUGS. HYDROPYRIMIDINE
Inventors
- 👤 P Baetz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:19
CPC Classifications
C; C07; C07D; C07D513/00; C07D513/02; C07D513/04
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) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |