US3751567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synergistic antibiotics
Assignee: Novartis Corp
•
Filing: 1972-01-17
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Granted: 1973-08-07
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Expires: 1992-01-17
Abstract
Abstract RIFAMYCINES OR THEIR SEMISYNTHETIC DERIVATIVES, IN COMBINATION WITH PENCILLINES OR CEPHALOSPORINES, EXHIBIT SYNERGISTIC EFFECTS AGAINST PATHOGENS.
Inventors
- 👤 E Konopka
- 👤 J Gelzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:48
CPC Classifications
A; A23; A23K; A23K20/00; A23K20/10; A23K20/195
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) | 1976-08-06 | 1977-02-05 | 1977-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-06 | 1981-02-05 | 1981-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-06 | 1985-02-05 | 1985-08-07 | $7700.00 | Window Closed / Lapsed |