Patent US3415848A successfully refreshed from Google Patents.
US3415848A
Expired / Lapsed
US
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Erythronolide b esters
Assignee: Abbott Laboratories
•
Filing: 1965-08-26
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Granted: 1968-12-10
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Expires: 1985-08-26
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Perun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:41
CPC Classifications
C; C07; C07C; C07C69/00; C07C69/34; C07H; C07H17/00; C07H17/04; C07H17/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3127315A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |