Patent US2877231A successfully refreshed from Google Patents.
US2877231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Certain 3-substituted cycloalkano-[d]-4-thiazoline-2-ones
Assignee: CIBA PHARM PROD Inc
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Filing: 1957-02-07
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Granted: 1959-03-10
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Expires: 1977-02-07
Abstract
No abstract record available.
Inventors
- 👤 Stevens George De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:10
CPC Classifications
C; C07; C07D; C07D277/00; C07D277/60; C07D277/62; C07D277/68
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
52 words
3-R-CYCLOALKANO-(D)-4-THIAZOLINE-2-ONE, IN WHICH R STANDS FOR A MEMBER OF THE GROUP CONSISTING OF HYDROGEN AND LOWER ALKYL, AND IN WHICH THE CYCLOALKANO PORTION CONTAINS FROM 5 TO 7 CARBON ATOMS. 10. 3-R-CYCLOALKANO-(D)-4-THIAZOLINE-2-ONE, IN WHCH R STANDS FOR HYDROXY-LOWER ALKYL, AND IN WHICH THE CYCLOALKANO PORTION CONTAINS FROM 5 TO 7 CARBON ATOMS.
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) | 1962-03-09 | 1962-09-08 | 1963-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-09 | 1966-09-08 | 1967-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-09 | 1970-09-08 | 1971-03-10 | $7700.00 | Window Closed / Lapsed |