Patent US3591697A successfully refreshed from Google Patents.
US3591697A
Expired / Lapsed
US
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1,4-dihydro - 1 - substituted-6,7-methylenedioxy-4-oxo -3-quinoline carboxylic acid antibacterial agents
Assignee: Warner Lambert Co LLC
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Filing: 1970-06-19
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Granted: 1971-07-06
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Expires: 1990-06-19
Abstract
Abstract -N(-R2)-R3, NH-(CH2)P-N(-R2)-R3 WHEREIN R REPRESENTS ALKYL, SUBSTITUTED LOWER ALKYL, CYCLOALKYL, ALKENYL AND ARALKYL; R1 REPRESENTS 0-ALKYL, O-MONO OR DIALKYLAMINOALKYL, O-CYCLOALKYL, NH-ALKYL, NH-ARYL, 5-R,7-(R1-OC-)-1,3-DIOXOLO(4,5-G)QUINOLIN-8(5H)-ONE THE PRESENT INVENTION RELATES TO COMPOSITIONS OF MASTER CONTAINING QUINOLINES OF THE FORMULA: NHCOOR2, NHOR, OR ANY READILY HYDROLYZABLE GROUP. THESE COMPOUNDS ARE USEFUL AS ANTI-MICROBIAL AGENTS.
Inventors
- 👤 Daniel Kaminsky
- 👤 Robert I Meltzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:47
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/435; A61K31/47; C; C07; C07D; C07D491/00; C07D491/02; C07D491/04; C07D491/056
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) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |