US2783198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amino-alkyl-sulfonic acid chloridehydrochlorides
Assignee: Ruhrchemie AG
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Filing: 1953-11-05
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Granted: 1957-02-26
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Expires: 1973-11-05
Abstract
No abstract record available.
Inventors
- 👤 Feichtinger Hans
- 👤 Tummes Hans
- 👤 Puschhof Siegfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:27
CPC Classifications
C; C07; C07C; C07C309/00; C07C309/78; C07C309/79; C07C309/80
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
PROCESS FOR THE PRODUCTION OF HYDROCHLORIDES OF AMINO-ALKYL-SULFONIC ACID CHLORIDES HAVING 3 TO 6 CARBON ATOMS WHICH COMPRISES CONTACTING A PRIMARY SATURATED ALIPHATIC AMINE HYDROCHLORIDE HAVING 3 TO 6 CARBON ATOMS WITH A CHLORINE AND SULFUR DIOXIDE-CONTAINING GAS IN THE PRESENCE OFF A MEMBER SELECTED FROM THE GROUP CONSISTING OF CHLOROFORM AND CARBON TETRACHLORIDE WHILE IRRADIATING WITH ACTINIC LIGHT, WASHING THE RESULTING SULFOCHLORINATION PRODUCT OBTAINED WITH CHLOROFORM, AND RECOVERING A HYDROCHLORIDE OF AN AMINO-ALKYL-SULFONIC ACID CHLORIDE.
Claim 2
Dependent Claim
76 words
PROCESS FOR THE PRODUCTION OF HYDROCHLORIDES OF AMINO-ALKYL-SULFONIC ACID CHLORIDES HAVING 3 TO 6 CARBON ATOMS WHICH COMPRISES CONTACTING A PRIMARY SATURATED ALIPHATIC AMINE HYDROCHLORIDE HAVING 3 TO 6 CARBON ATOMS WITH A CHLORINE AND SULFUR DIOXIDE-CONTAINING GAS IN THE PRESENCE OFF A MEMBER SELECTED FROM THE GROUP CONSISTING OF CHLOROFORM AND CARBON TETRACHLORIDE WHILE IRRADIATING WITH ACTINIC LIGHT, WASHING THE RESULTING SULFOCHLORINATION PRODUCT OBTAINED WITH CHLOROFORM, AND RECOVERING A HYDROCHLORIDE OF AN AMINO-ALKYL-SULFONIC ACID CHLORIDE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-26 | 1960-08-27 | 1961-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-26 | 1964-08-27 | 1965-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-26 | 1968-08-27 | 1969-02-26 | $7700.00 | Window Closed / Lapsed |