US2521870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disproportionation of organic disulfides
Assignee: Standard Oil Co
•
Filing: 1946-10-22
•
Granted: 1950-09-12
•
Expires: 1966-10-22
Abstract
No abstract record available.
Inventors
- 👤 Wayne A Proell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:04
CPC Classifications
C; C07; C07C; C07C319/00; C07C319/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
THE METHOD OF EFFECTING THE HYDROCARBON DISULFIDE REACTION RSSR+R''SSR''<- ->2RSSR'' WHERE R AND R'' ARE DIFFERENT RADICALS SELECTED FROM THE GROUP CONSISTING OF ALKYL AND ARYL RADICALS, WHICH METHOD COMPRISES HEATING A DISULFIDE CHANGING STOCK CONTAINING AT LEAST TWO DIFFERENT SIMPLE DISULFIDES HAVING RADICALS SELECTED FROM THE SAID GROUP IN THE PRESENCE OF AN ALKALINE SOLUTION OF AN ALKALI SULFIDE IN A SOLVENT OF THE CLASS CONSISTING OF WATER, ALIPHATIC ALCOHOLS AND METHYL AND ETHYL MONOETHERS OF ETHYLENE GLYCOL.
Claim 2
Independent Claim
79 words
THE METHOD OF EFFECTING THE HYDROCARBON DISULFIDE REACTION RSSR+R''SSR''<- ->2RSSR'' WHERE R AND R'' ARE DIFFERENT RADICALS SELECTED FROM THE GROUP CONSISTING OF ALKYL AND ARYL RADICALS, WHICH METHOD COMPRISES HEATING A DISULFIDE CHANGING STOCK CONTAINING AT LEAST TWO DIFFERENT SIMPLE DISULFIDES HAVING RADICALS SELECTED FROM THE SAID GROUP IN THE PRESENCE OF AN ALKALINE SOLUTION OF AN ALKALI SULFIDE IN A SOLVENT OF THE CLASS CONSISTING OF WATER, ALIPHATIC ALCOHOLS AND METHYL AND ETHYL MONOETHERS OF ETHYLENE GLYCOL.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |