US3072712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mono esters and amides of di lower alkyl malonic acid with 2-carboxy-2 di lower alkyl ethyl alcohol and amine and preparation thereof
Assignee: Eastman Kodak Co
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Filing: 1960-12-05
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Granted: 1963-01-08
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Expires: 1980-12-05
Abstract
No abstract record available.
Inventors
- 👤 John R Caldwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:30
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/02; C08G69/26
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
36 words
A NEW COMPOSITION OF MATTER HAVING THE FOLLOWING FORMULA: HOOC-C(-R1)(-R2)-CO-X-CH2-C(-R3)(-R4)-COOH IN WHICH R1, R2, R3 AND R4 ARE ALKYL RADICALS HAVING 1-3 CARBON ATOMS AND X IS SELECTED FROM THE CLASS CONSISTING OF O AND NH.
Claim 2
Dependent Claim
36 words
A NEW COMPOSITION OF MATTER HAVING THE FOLLOWING FORMULA: HOOC-C(-R1)(-R2)-CO-X-CH2-C(-R3)(-R4)-COOH IN WHICH R1, R2, R3 AND R4 ARE ALKYL RADICALS HAVING 1-3 CARBON ATOMS AND X IS SELECTED FROM THE CLASS CONSISTING OF O AND NH.
Claim 3
Dependent Claim
61 words
A PROCESS FOR OBTAINING A CARBOXYLIC ACID CONTAINING A NEO-PENTYL STRUCTURE COMPRISING OXIDIZING AN ALCOHOL HAVING THE FOLLOWING STRUCTURAL FORMULA: HO-CH2-C(-R1)(-R2)-CO-X-CH2-C(-R3)(-R4)-CH2-OH WITH NITRIC ACID TO OBTAIN A COMPOSITION OF MATTER HAVING THE FOLLOWING STRUCTURE: HOOC-C(-R1)(-R2)-CO-X-CH2-C(-R3)(-R4)-COOH IN WHICH R1, R2, R3, AND R4 ARE ALKYL RADICALS HAVING 1-3 CARBON ATOMS, AND X IS SELECTED FROM THE CLASS CONSISTING OF O AND NH.
Claim 4
Dependent Claim
61 words
A PROCESS FOR OBTAINING A CARBOXYLIC ACID CONTAINING A NEO-PENTYL STRUCTURE COMPRISING OXIDIZING AN ALCOHOL HAVING THE FOLLOWING STRUCTURAL FORMULA: HO-CH2-C(-R1)(-R2)-CO-X-CH2-C(-R3)(-R4)-CH2-OH WITH NITRIC ACID TO OBTAIN A COMPOSITION OF MATTER HAVING THE FOLLOWING STRUCTURE: HOOC-C(-R1)(-R2)-CO-X-CH2-C(-R3)(-R4)-COOH IN WHICH R1, R2, R3, AND R4 ARE ALKYL RADICALS HAVING 1-3 CARBON ATOMS, AND X IS SELECTED FROM THE CLASS CONSISTING OF O AND NH.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |