US3780019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of erythromycylamine compounds
Assignee: Lilly Industries Ltd
•
Filing: 1971-03-17
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Granted: 1973-12-18
•
Expires: 1991-03-17
Abstract
Abstract ERYTHROMYCYLAMINE COMPOUNDS ARE PRODUCED BY REDUCTION OF AN ERYTHROMYCIN OXIME, USING TRANSITION METAL IONS WHICH ARE IN A LOW VALENCY STATE AND OF SUITABLE REDOX POTENTIAL, TO THE CORRESPONDING IMINE, REDUCTION OF THE LATTER PRODUCING THE DESIRED ERYTHROMYCYLAMINE.
Inventors
- 👤 E Wildsmith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:45
CPC Classifications
C; C07; C07H; C07H17/00; C07H17/04; C07H17/08
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) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |