US2680713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing diesters of unsaturated alpha, omega-dicarboxylic acids by electrolysis
Assignee: EIDP Inc
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Filing: 1953-03-16
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Granted: 1954-06-08
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Expires: 1973-03-16
Abstract
No abstract record available.
Inventors
- 👤 Jr Richard V Lindsey
- 👤 Marvin L Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:42
CPC Classifications
C; C25; C25B; C25B3/00; C25B3/20; C25B3/29; C25B3/01; C25B3/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
PROCESS FOR PREPARING A DIESTER OF AN UNSATURATED ALPHA,OMEGA-DICARBOXYLIC ACID WHICH COMPRISES SUBJECTING A MONOESTER SALT OF A SATURATED ALPHA,OMEGA-DICARBOXYLIC ACID TO ELECTROLYSIS IN AN INERT ORGANIC SOLVENT CONTAINING A CONJUGATED DIENE, SAID ELECTROLYSIS BEING UNDER CONDITIONS SUITABLE FOR PRODUCING SAID DIESTER AND UNTIL THE MONOESTER SALT IS SUBSTANTIALLY COMPLETELY CONVERTED, AND RECOVERING SAID DIESTER OF A CARBON CONTENT EQUAL TO TWO LESS THAN TWICE THE SUM OF THE CARBON CONTENTS OF THE MONOESTER SALT AND DIENE COMPOUND.
Claim 2
Dependent Claim
78 words
PROCESS FOR PREPARING A DIESTER OF AN UNSATURATED ALPHA,OMEGA-DICARBOXYLIC ACID WHICH COMPRISES SUBJECTING A MONOESTER SALT OF A SATURATED ALPHA,OMEGA-DICARBOXYLIC ACID TO ELECTROLYSIS IN AN INERT ORGANIC SOLVENT CONTAINING A CONJUGATED DIENE, SAID ELECTROLYSIS BEING UNDER CONDITIONS SUITABLE FOR PRODUCING SAID DIESTER AND UNTIL THE MONOESTER SALT IS SUBSTANTIALLY COMPLETELY CONVERTED, AND RECOVERING SAID DIESTER OF A CARBON CONTENT EQUAL TO TWO LESS THAN TWICE THE SUM OF THE CARBON CONTENTS OF THE MONOESTER SALT AND DIENE COMPOUND.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-07 | 1957-12-07 | 1958-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-07 | 1961-12-07 | 1962-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-07 | 1965-12-07 | 1966-06-08 | $7700.00 | Window Closed / Lapsed |