Patent US3714142A successfully refreshed from Google Patents.
US3714142A
Expired / Lapsed
US
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Erythromycine
Assignee: Abbott Laboratories
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Filing: 1971-01-18
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Granted: 1973-01-30
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Expires: 1991-01-18
Abstract
Abstract Erythromycin E is useful as an antibiotic. The compounds is prepared by the fermentation of erythromycin with Streptomyces erythreus NRRL 3887 in suitable nutrient media.
Inventors
- 👤 J Martin
- 👤 A Goldstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:49
CPC Classifications
C; C07; C07H; C07H17/00; C07H17/04; C07H17/08; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/886
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
The compound erythromycin E having the structural formula
Claim 2
Dependent Claim
8 words
The compound erythromycin E having the structural formula
References Cited (Backward Citations)
US3652537A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-30 | 1976-07-31 | 1977-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-30 | 1980-07-31 | 1981-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-30 | 1984-07-31 | 1985-01-30 | $7700.00 | Window Closed / Lapsed |