Patent US3249650A successfully refreshed from Google Patents.
US3136704A
Expired / Lapsed
US
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Manufacture of gentamycin
Assignee: Merck Sharp & Dohme LLC
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Filing: 1962-12-05
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Granted: 1964-06-09
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Expires: 1982-12-05
Abstract
No abstract record available.
Inventors
- 👤 Charney William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:16
CPC Classifications
C; C07; C07H; C07H15/00; C07H15/20; C07H15/22; C07H15/222; C07H15/226; C07H15/234; C07H15/236; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/863; Y10S435/865
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
IN A PROCESS FOR THE PRODUCTION OF GENTAMYCIN WHEREBY A GENTAMYCN-PRODUCING STRAIN OF MICROMONOSPORA IS CULTIVATED IN AN AQUEOUS NUTRIENT MEDIUM UNDER AEROBIC CONDITIONS UNTIL GENTAMYCINIS PRODUCED AND ISOLATED THEREFROM, THE IMPROVEMENT WHICH COMPRISES EFFECTING THE CULTIVATION IN A MEDIUM CONTAINING FROM ABOUT 2.5X10**-6 GRAMS PER MILLILITER OF COBALT TO LESS THAN 1.25X10**-5 GRAMS PER MILLILITER OF COBALT, SAID COBALT BEING IN THE FORM OF A WATER SOLUBLE SALT.
Claim 2
Dependent Claim
69 words
IN A PROCESS FOR THE PRODUCTION OF GENTAMYCIN WHEREBY A GENTAMYCN-PRODUCING STRAIN OF MICROMONOSPORA IS CULTIVATED IN AN AQUEOUS NUTRIENT MEDIUM UNDER AEROBIC CONDITIONS UNTIL GENTAMYCINIS PRODUCED AND ISOLATED THEREFROM, THE IMPROVEMENT WHICH COMPRISES EFFECTING THE CULTIVATION IN A MEDIUM CONTAINING FROM ABOUT 2.5X10**-6 GRAMS PER MILLILITER OF COBALT TO LESS THAN 1.25X10**-5 GRAMS PER MILLILITER OF COBALT, SAID COBALT BEING IN THE FORM OF A WATER SOLUBLE SALT.
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) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |