US2460968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the obtainment of aliphatic sulfonic acids and esters thereof
Assignee: D'innovations Chimiques Dite Sinnova Ou Sadic SA Ste
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Filing: 1945-07-20
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Granted: 1949-02-08
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Expires: 1965-07-20
Abstract
No abstract record available.
Inventors
- 👤 Bert Leonce
- 👤 Blinoff Vsevolod
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:31
CPC Classifications
C; C07; C07C; C07C303/00; C07C303/02; C07C303/04; C07C303/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1936265A
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US2043476A
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US2371284A
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US1926442A
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US1822977A
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US1931806A
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US2044400A
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US2129896A
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US2136379A
Cited
US2192721A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-08 | 1952-08-09 | 1953-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-08 | 1956-08-09 | 1957-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-08 | 1960-08-09 | 1961-02-08 | $7700.00 | Window Closed / Lapsed |