US3803128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
6-acyl derivatives of amino-penicillanic acid
Assignee: Individual
•
Filing: 1972-01-03
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Granted: 1974-04-09
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Expires: 1992-01-03
Abstract
Abstract COMPOUNDS REPRESENTED BY THE FOLLOWING FORMULA, A PROCESS FOR THEIR PREPARATION AND NOVEL INTERMEDIATES THEREFOR ARE DISCLOSED. THESE COMPOUNDS ARE USEFUL ANTIBIOTICS. 2-(HOOC-),3,3-DI(CH3-),6-(R-COO-CH(-T)-CO-NH-)PENAM WHEREIN R IS A SUBSTITUTED PHENYL RADICAL AND T IS A C2C5 ALKYL OR ALKENYL, A CYCLOPROPYLMETHYL OR CYCLOBUTYLMETHYL, OR AN ARLAKYL CONTAINING UP TO 8 CARBON ATOMS.
Inventors
- 👤 P Lanz
- 👤 K Vogler
- 👤 G Zanetti
- 👤 A Furlenmeier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:16
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/30; C07D207/32; C07D207/325; C07D207/327; C07C; C07C229/00; C07C229/38; C07C317/00; C07C323/00; C07D207/46; C07D309/00; C07D309/02; C07D309/08; C07D309/10; C07D309/12; C07D499/00; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/55
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) | 1977-04-08 | 1977-10-08 | 1978-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-08 | 1981-10-08 | 1982-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-08 | 1985-10-08 | 1986-04-09 | $7700.00 | Window Closed / Lapsed |