US3573298A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-hydroxyethylamino- and n-morpholino-dithiocarboxylated cephalosporins
Assignee: Eli Lilly and Co
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Filing: 1968-11-18
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Granted: 1971-03-30
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Expires: 1988-11-18
Abstract
Abstract A-THIENYLMETHYL N - METHYL - N - B - HYDROXYETHYLDITHIOCARBAMATE, A-THIENYLMETHYL N, N - BIS(B-HYDROXYETHYL)DITHIOCARBAMATE, AND A-THIENYLMETHL MORPHOLINODITHIOCARBOXYLATE CEPHALOSPORINS USEFUL AS ANTIBIOTICS.
Inventors
- 👤 Earle M Van Heyningen
- 👤 Carter W Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:39
CPC Classifications
C; C07; C07D; C07D501/00; C07D501/14; C07D501/16; C07D501/20; C07D501/24; C07D501/36
Claims Analysis
Total Claims: 0
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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) | 1974-03-29 | 1974-09-28 | 1975-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-29 | 1978-09-28 | 1979-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-29 | 1982-09-28 | 1983-03-30 | $7700.00 | Window Closed / Lapsed |