US3701770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
9,11-cyclic boronate esters of the 6,9-hemiketal of erythromycin a
Assignee: Abbott Laboratories
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Filing: 1971-02-01
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Granted: 1972-10-31
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Expires: 1991-02-01
Abstract
Abstract THE 9,11-PHENYL; HALO, NITRO, AND LOWER ALKYL SUBSTITUTED PHENYL; LOWER ALKYL; FATTY ALKYL; AND CYCLYOHEXYL CYCLIC BORONATE ESTER OF THE 6,9-HEMIKETAL OF ERYTHROMYCIN A HAVE USEFUL ANTIBIOTIC ACTIVITY.
Inventors
- 👤 Peter Hadley Jones
- 👤 Kishori S Iyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:08
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) | 1975-10-31 | 1976-05-01 | 1976-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-31 | 1980-05-01 | 1980-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-31 | 1984-05-01 | 1984-10-31 | $7700.00 | Window Closed / Lapsed |