US3663564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Urazoles and their production
Assignee: Knoll Pharmaceutical Co
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Filing: 1958-06-19
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Granted: 1972-05-16
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Expires: 1978-06-19
Abstract
Abstract A PHENYL-SUBSTITUTED URAZOLE AND A METHOD OF MAKING URAZOLES. THE URAZOLES ARE DRUGS, ESPECIALLY ANTICONVULSANTS.
Inventors
- 👤 Charles R Jacobson
- 👤 Anthony D Adamo
- 👤 Charlotte E Cosgrove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:38
CPC Classifications
C; C07; C07D; C07D249/00; C07D249/02; C07D249/08; C07D249/10; C07D249/12; A; A61; A61K; A61K31/00
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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |