US3100176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hygromycin and method of producing same
Assignee: Parke Davis and Co LLC
•
Filing: 1954-09-09
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Granted: 1963-08-06
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Expires: 1974-09-09
Abstract
No abstract record available.
Inventors
- 👤 Ehrlich John
- 👤 Quentin R Bartz
- 👤 Knudsen Mildred Penner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:06
CPC Classifications
C; C07; C07H; C07H15/00; C07H15/20; C07H15/22; C07H15/222; C07H15/224; C12; C12N; C12N1/00; C12N1/20; C12N1/205; C12P; C12P19/00; C12P19/44; C12P19/60; C12P19/62; C12R; C12R2001/00; C12R2001/01; C12R2001/465; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/886
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
47 words
HYGROMYCIN, AN ANTIBIOTIC PRODUCED BY CULTIVATING UNDER AEROBIC CONDITIONS THE STREPTOMYCES STRAIN NRRL 2429 IN A CULTURE MEDIUM CONTAINING MOLD-ASSIMILABLE CARBON, NITROGEN AND INORGANIC SALTS, UNTIL SUBSTANTIAL ANTIBIOTIC ACTIVITY IS PRODUCED BY SAID STREPTOMYCES STRAIN IN SAID CULTURE MEDIUM, AND RECOVERING THE HYGROMYCIN FROM SAID CULTURE MEDIUM.
References Cited (Backward Citations)
CA514590A
Cited
US2653899A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-05 | 1967-02-04 | 1967-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-05 | 1971-02-04 | 1971-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-05 | 1975-02-04 | 1975-08-06 | $7700.00 | Window Closed / Lapsed |