US3018220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hygromycin b, its production and treatment of intestinal parasites
Assignee: Eli Lilly and Co
•
Filing: 1957-10-15
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Granted: 1962-01-23
•
Expires: 1977-10-15
Abstract
No abstract record available.
Inventors
- 👤 James M Mcguire
- 👤 Robert L Mann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:42
CPC Classifications
C; C07; C07G; C07G11/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/886; Y10S435/898
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
66 words
A METHOD OF PRODUCING HYGROMYCIN B WHICH COMPRISES CULTIVATING A HYDROMYCIN B-PRODUCING STRAIN OF STREPTOMYCES HYGROSCOPICUS IN A CULTURE MEDIUM CONTAINING MOLD-ASSIMILABLE SOURCES OF CARBOHYDRATE, NITROGEN AND INORGANIC SALTS, UNDER SUBMERGED AEROBIC CONDITIONS UNTIL A SUBSTANTIAL AMOUNT OF HYGROMYCIN B IS PRODUCED BY SAID ORGANISM IN SAID CULTURE MEDIUM, AND RECOVERING AND ISOLATING SUBSTANTIALLY FREE FROM OTHER ANTIBIOTIC SUBSTANCES THE HYGROMYCIN B FROM SAID CULTURE MEDIUM.
Claim 2
Independent Claim
66 words
A METHOD OF PRODUCING HYGROMYCIN B WHICH COMPRISES CULTIVATING A HYDROMYCIN B-PRODUCING STRAIN OF STREPTOMYCES HYGROSCOPICUS IN A CULTURE MEDIUM CONTAINING MOLD-ASSIMILABLE SOURCES OF CARBOHYDRATE, NITROGEN AND INORGANIC SALTS, UNDER SUBMERGED AEROBIC CONDITIONS UNTIL A SUBSTANTIAL AMOUNT OF HYGROMYCIN B IS PRODUCED BY SAID ORGANISM IN SAID CULTURE MEDIUM, AND RECOVERING AND ISOLATING SUBSTANTIALLY FREE FROM OTHER ANTIBIOTIC SUBSTANCES THE HYGROMYCIN B FROM SAID CULTURE MEDIUM.
Claim 3
Dependent Claim
15 words
A METHOD ACCORDING TO CLAIM 1 IN WHICH THE ORGANISM IS STREPTOMYCES HYGROSCOPICUS NRRL 2387.
Claim 4
Dependent Claim
15 words
A METHOD ACCORDING TO CLAIM 1 IN WHICH THE ORGANISM IS STREPTOMYCES HYGROSCOPICUS NRRL 2388.
Claim 5
Dependent Claim
15 words
A METHOD ACCORDING TO CLAIM 1 IN WHICH THE ORGANISM IS STREPTOMYCES HYGROSCOPICUS NRRL 2389.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-22 | 1965-07-24 | 1966-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-22 | 1969-07-24 | 1970-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-22 | 1973-07-24 | 1974-01-23 | $7700.00 | Window Closed / Lapsed |