US2687432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthesis of carboxylic acids
Assignee: EIDP Inc
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Filing: 1952-10-08
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Granted: 1954-08-24
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Expires: 1972-10-08
Abstract
No abstract record available.
Inventors
- 👤 Coffman Donald Drake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:13
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/10; C07C51/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
PROCESS OF SYNTHESIZING A CARBOXYLIC ACID WHICH COMPRISES REACTING AN ORGANIC COMPOUND FREE FROM OPEN CHAIN CARBON-TO-CARBON UNSATURATION AN CONTAINING HYDROGEN BONDED TO CARBON, WITH CARBON MONOXIDE IN THE PRESENCE OF HYDROXYL FREE-RADICALS IN AN AQUEOUS MEDIUM CONTAINING NOT MORE THAN 100 PARTS, BY WEIGHT, OF WATER TO ONE PART OF SAID ORGANIC COMPOUND.
Claim 2
Dependent Claim
54 words
PROCESS OF SYNTHESIZING A CARBOXYLIC ACID WHICH COMPRISES REACTING AN ORGANIC COMPOUND FREE FROM OPEN CHAIN CARBON-TO-CARBON UNSATURATION AN CONTAINING HYDROGEN BONDED TO CARBON, WITH CARBON MONOXIDE IN THE PRESENCE OF HYDROXYL FREE-RADICALS IN AN AQUEOUS MEDIUM CONTAINING NOT MORE THAN 100 PARTS, BY WEIGHT, OF WATER TO ONE PART OF SAID ORGANIC 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) | 1957-08-23 | 1958-02-22 | 1958-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-23 | 1962-02-22 | 1962-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-23 | 1966-02-22 | 1966-08-24 | $7700.00 | Window Closed / Lapsed |