US2888487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of alpha-mercaptoketones
Assignee: Leuna Werke GmbH
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Filing: 1956-10-11
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Granted: 1959-05-26
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Expires: 1976-10-11
Abstract
No abstract record available.
Inventors
- 👤 Asinger Friedrich
- 👤 Thiel Max
- 👤 Pallas Edith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:22
CPC Classifications
C; C07; C07C; C07C323/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
A PROCESS FOR THE PRODUCTION OF A-MERCAPTOKETONES, COMPRISING THE STEPS OF SUBJECTING $-3,4-THIAZOLINES OF THE GENERAL FORMULA
Claim 2
Dependent Claim
17 words
A PROCESS FOR THE PRODUCTION OF A-MERCAPTOKETONES, COMPRISING THE STEPS OF SUBJECTING $-3,4-THIAZOLINES OF THE GENERAL FORMULA
References Cited (Backward Citations)
US2212150A
Cited
US2363462A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-25 | 1962-11-24 | 1963-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-25 | 1966-11-24 | 1967-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-25 | 1970-11-24 | 1971-05-26 | $7700.00 | Window Closed / Lapsed |