Patent US2790818A successfully refreshed from Google Patents.
US2790818A
Expired / Lapsed
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Cyanoethylation of organic sulfur compounds
Assignee: Monsanto Chemicals Ltd
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Filing: 1954-09-23
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Granted: 1957-04-30
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Expires: 1974-09-23
Abstract
No abstract record available.
Inventors
- 👤 Glen E Journeay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:50
CPC Classifications
C; C07; C07C; C07C319/00; C07C319/14; C07C2601/00; C07C2601/12; C07C2601/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
APROCESS FOR CYANOETHYLATING ORGANIC SULFUR COMPOUNDS WHICH COMPRISES REACTING B,B-OXYDIPROPIONITRILE WITH COMPOUNDS HAVING THE GENERAL FORMULA RSH, IN WHICH R REPRESENTS A RESIDUE CHOSEN FROM THE GROUP CONSISTING OF THE ALKYL, ALKENYL, CYCLOALKYL, ARYL, ALKARYL AND ARALKYL RADICALS IN THE PRESENCE OF A STRANGLY ALKALINE CATALYST.
Claim 2
Dependent Claim
46 words
APROCESS FOR CYANOETHYLATING ORGANIC SULFUR COMPOUNDS WHICH COMPRISES REACTING B,B-OXYDIPROPIONITRILE WITH COMPOUNDS HAVING THE GENERAL FORMULA RSH, IN WHICH R REPRESENTS A RESIDUE CHOSEN FROM THE GROUP CONSISTING OF THE ALKYL, ALKENYL, CYCLOALKYL, ARYL, ALKARYL AND ARALKYL RADICALS IN THE PRESENCE OF A STRANGLY ALKALINE CATALYST.
References Cited (Backward Citations)
US2413917A
Cited
US2437906A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-29 | 1960-10-29 | 1961-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-29 | 1964-10-29 | 1965-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-29 | 1968-10-29 | 1969-04-30 | $7700.00 | Window Closed / Lapsed |