US3816397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
11,12-epoxyerythromycins
Assignee: Abbott Laboratories
•
Filing: 1972-06-15
•
Granted: 1974-06-11
•
Expires: 1992-06-15
Abstract
Abstract COVERS 11, 12-EPOXYERYTHROMYCINS WHICH ARE USEFUL AS ANTIBIOTICS.
Inventors
- 👤 J Tadanier
- 👤 J Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:06
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) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |