US3780018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Derivatives of gentamicin c1
Assignee: Bristol Myers Co
•
Filing: 1972-06-26
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Granted: 1973-12-18
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Expires: 1992-06-26
Abstract
Abstract DERIVATIVES OF GENTAMICIN C1 HAVE BEEN PREPARED WHICH POSSESS SUBSTANTIALLY IMPROVED ANTIBACTERIAL ACTIVITY. A EXAMPLE OF SUCH AN AGENT IS 1-(L-(-)-$-AMINO-AHYDROXYBUTYRYL)GENTAMICIN C1(IIIA,BB-K62).
Inventors
- 👤 M Konishi
- 👤 H Tsukiura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:34
CPC Classifications
C; C07; C07H; C07H15/00; C07H15/20; C07H15/22; C07H15/222; C07H15/226; C07H15/234; C07H15/236; A; A61; A61P; A61P31/00; A61P31/04
Claims Analysis
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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) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |