US3139431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
6-(5-nitro-2-furyl) azauracil
Assignee: Warner Chilcott Pharmaceuticals Inc
•
Filing: 1960-02-23
•
Granted: 1964-06-30
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Expires: 1980-02-23
Abstract
No abstract record available.
Inventors
- 👤 Kenyon J Hayes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:41
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/62; C07D213/63; C07D213/65; C07D213/66; C07D253/00; C07D253/02; C07D253/06; C07D253/065; C07D253/07; C07D253/075; C07D307/00; C07D307/02; C07D307/34; C07D307/56; C07D307/70; C07D307/71; C07D307/72; C07D307/74; C07D307/76; C07D405/00; C07D405/02; C07D405/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-30 | 1967-12-30 | 1968-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-30 | 1971-12-30 | 1972-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-30 | 1975-12-30 | 1976-06-30 | $7700.00 | Window Closed / Lapsed |