Patent US3828022A successfully refreshed from Google Patents.
US3828022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
10,11-anhydroerythromycins
Assignee: Abbott Laboratories
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Filing: 1972-06-15
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Granted: 1974-08-06
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Expires: 1992-06-15
Abstract
Abstract COVER 10,11-ANHYDROERYTHROMYCINS WHICH ARE USEFUL AS ANTIBIOTICS.
Inventors
- 👤 J Tadanier
- 👤 J Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:04
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) | 1977-08-05 | 1978-02-04 | 1978-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-05 | 1982-02-04 | 1982-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-05 | 1986-02-04 | 1986-08-06 | $7700.00 | Window Closed / Lapsed |