US3950357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antibiotics
Assignee: Merck and Co Inc
•
Filing: 1974-11-25
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Granted: 1976-04-13
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Expires: 1994-11-25
Abstract
Abstract The antibiotic thienamycin is active against both gram-positive and gram-negative bacteria. The antibiotic is produced by growing a newly-found and hitherto undescribed species of Streptomyces on suitable fermentation media.
Inventors
- 👤 Jean S. Kahan
- 👤 Frederick M. Kahan
- 👤 Edward O. Stapley
- 👤 Robert T. Goegelman
- 👤 Sebastian Hernandez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:49
CPC Classifications
C; C07; C07D; C07D477/00; C07D477/10; C07D477/12; C07D477/16; C07D477/20; C12; C12N; C12N1/00; C12N1/20; C12N1/205; C12P; C12P17/00; C12P17/18; C12P17/182; C12P17/184; C12R; C12R2001/00; C12R2001/01; C12R2001/465; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/886
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
7 words
A compound having the following structure: ##SPC2##
Claim 2
Dependent Claim
7 words
A compound having the following structure: ##SPC2##
Claim 3
Dependent Claim
5 words
Thienamycin in essentially pure form.
Claim 4
Dependent Claim
5 words
Thienamycin in essentially pure form.
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) | 1979-04-13 | 1979-10-13 | 1980-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-13 | 1983-10-13 | 1984-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-13 | 1987-10-13 | 1988-04-13 | $7700.00 | Window Closed / Lapsed |