US3454579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Imidazo(1,5-a)quinolin-1-one and thione derivatives
Assignee: Wyeth Holdings LLC
•
Filing: 1967-08-17
•
Granted: 1969-07-08
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Expires: 1987-08-17
Abstract
No abstract record available.
Inventors
- 👤 William Blythe Wright Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:59
CPC Classifications
C; C07; C07D; C07D471/00; C07D471/02; C07D471/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3004975A
Cited
US2887378A
Cited
US2865749A
Cited
US3151116A
Cited
US3200123A
Cited
US3354164A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |