US3592812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
7-(1-aminocycloalkylcarboxamido) cephalosporanic acids and related compounds
Assignee: Wyeth LLC
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Filing: 1968-12-06
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Granted: 1971-07-13
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Expires: 1988-12-06
Abstract
Abstract NOVEL 7-(1-AMINOCYCLOALKYLCARBOXAMIDO) CEPHALOSPORANIC ACIDS, INCLUDING ALIPHATIC AND ARYL-CYCLOALKYL RING SUBSTITUTED CEPHALOSPORANIC ACIDS ARE PREPARED. THE COMPOUNDS HAVE USEFUL ANTIBIOTIC ACTIVITY.
Inventors
- 👤 Harvey E Alburn
- 👤 William Dvonch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:33
CPC Classifications
C; C07; C07D; C07D501/00; C07D501/14; C07D501/16; C07D501/20
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) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |