US3654296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-chlorobenzothiazolecarboxamides
Assignee: Merck and Co Inc
•
Filing: 1969-01-10
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Granted: 1972-04-04
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Expires: 1989-01-10
Abstract
Abstract 2-CHLOROBENZOTHIAZOLECARBOXAMIDES, USEFUL NEW AGENTS FOR INHIBITING GASTRIC ACID SECRETION, ARE PREPARED BY REACTING 2 - CHLOROBENZOTHIAZOLECARBONYL HALIDE WITH AN AMINO COMPOUND OF THE GENERAL FORMULA R1-NH-R2 WHERE R1 AND R2 ARE HYDROGEN, ALKYL, CYCLOALKYL, ALKENYL, HYDROXYALKYL, ALKOXYALKYL, DIALKYLAMINOALKYL, ARYL, ARALKYL OR WITH A 5 OR 6-MEMBERED HETEROCYCLIC COMPOUND FORMULATED BY JOINING R1 AND R2 WITH OR WITHOUT THE INCLUSION OF HETERO ATOMS SUCH AS O,N,S.
Inventors
- 👤 William A Bolhofer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:11
CPC Classifications
C; C07; C07D; C07D277/00; C07D277/60; C07D277/62; C07D277/68
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) | 1975-04-04 | 1975-10-04 | 1976-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-04 | 1979-10-04 | 1980-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-04 | 1983-10-04 | 1984-04-04 | $7700.00 | Window Closed / Lapsed |