US3555042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2,3,5,9b-tetrahydro-1h-imidazo(2,1-a) isoindol-5-ols
Assignee: Wyeth LLC
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Filing: 1968-10-04
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Granted: 1971-01-12
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Expires: 1988-10-04
Abstract
Abstract THIS INVENTION CONCERNS 2,3,5.9B-TETRAHYDRO-1H-IMIDAZO(2,1-A)ISOINDOL-5-OLS WHICH ARE PHARAMACOLOGICALLY ACTIVE AS ANOREXIANTS AND USEFUL AS INTERMEDIATES. FURTHER, IT CONCERNS THE PROCESS FOR THE PREPATATION OF THESE COMPOUNDS.
Inventors
- 👤 Theodore S Sulkowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:57
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/44; C07D209/46
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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |