US2694723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Xanthogenato-sulfonates and process for the preparation of mercaptoalkanesulfonates
Assignee: Lever Brothers Co
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Filing: 1952-09-27
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Granted: 1954-11-16
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Expires: 1972-09-27
Abstract
No abstract record available.
Inventors
- 👤 Charles H Schramm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:27
CPC Classifications
C; C07; C07C; C07C329/00; C07C329/12; C07C329/14; C07C329/16; C07C319/00; C07C319/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
72 words
A PROCESS FOR THE PREPARATION OF A MERCAPTOALKANESULFONATE WHICH COMPRISES REACTING A HALOALKANESULFONATE HAVING FROM ONE TO FIVE CARBON ATOMS IN WATER WITH AN ALKYLXANTHATE HAVING FROM ONE TO FIVE CARBON ATOMS IN WATER WITH AN ALKYLXANTHATE HAVING FROM ONE TO FIVE CARBON ATOMS TO FORM AN ALKYLXANTHOGENATOALKANESULFONATE, AND REACTING SAID LATTER COMPOUND WITH A BASE SELECTED FROM THE GROUP CONSISTING OF AMMONIUM HYDROXIDE AND ORGANIC NITROGEN BASES TO FORM A MERCAPTOALKANESULFONATE.
Claim 2
Dependent Claim
72 words
A PROCESS FOR THE PREPARATION OF A MERCAPTOALKANESULFONATE WHICH COMPRISES REACTING A HALOALKANESULFONATE HAVING FROM ONE TO FIVE CARBON ATOMS IN WATER WITH AN ALKYLXANTHATE HAVING FROM ONE TO FIVE CARBON ATOMS IN WATER WITH AN ALKYLXANTHATE HAVING FROM ONE TO FIVE CARBON ATOMS TO FORM AN ALKYLXANTHOGENATOALKANESULFONATE, AND REACTING SAID LATTER COMPOUND WITH A BASE SELECTED FROM THE GROUP CONSISTING OF AMMONIUM HYDROXIDE AND ORGANIC NITROGEN BASES TO FORM A MERCAPTOALKANESULFONATE.
Claim 3
Dependent Claim
4 words
COMPOUNDS HAVING THE STRUCTURE:
Claim 4
Dependent Claim
4 words
COMPOUNDS HAVING THE STRUCTURE:
References Cited (Backward Citations)
US1888794A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-15 | 1958-05-17 | 1958-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-15 | 1962-05-17 | 1962-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-15 | 1966-05-17 | 1966-11-16 | $7700.00 | Window Closed / Lapsed |