Patent US3796698A successfully refreshed from Google Patents.
US3796698A
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Antibiotic derivatives of gentamicin c2
Assignee: Bristol Myers Co
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Filing: 1972-10-18
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Granted: 1974-03-12
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Expires: 1992-10-18
Abstract
Abstract DERIVATIVES OF GENTAMICIN C2 HAVE BEEN PREPARED WHICH POSSES SUBSTANTIALLY IMPROVED ANTIBACTERIAL ACTIVITY. AN EXAMPLE OF SUCH AN AGENT IS 1-(L-(-)-Y-AMINO-A-HYDROXYBUTYRYL)-GENTAMICIN C2 (III, BB-K75).
Inventors
- 👤 T Naito
- 👤 S Nakagawa
- 👤 Y Abe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:54
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/44; C07D209/48; A; A61; A61P; A61P31/00; A61P31/04; C07D207/00; C07D207/46; C07H; C07H15/00; C07H15/20; C07H15/22; C07H15/222; C07H15/226; C07H15/234; C07H15/236; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/55; Y10; Y10S; Y10S426/00; Y10S426/807
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-11 | 1977-09-10 | 1978-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-11 | 1981-09-10 | 1982-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-11 | 1985-09-10 | 1986-03-12 | $7700.00 | Window Closed / Lapsed |