Patent US2879307A successfully refreshed from Google Patents.
US2879307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the reductionof carbonyl compounds to alcohols
Assignee: Dumont Freres and Cie
•
Filing: 1956-06-25
•
Granted: 1959-03-24
•
Expires: 1976-06-25
Abstract
No abstract record available.
Inventors
- 👤 Bezard Andre Von
- 👤 Jacot-Guillarmod Andre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:25
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/40; B01J23/42; B01J23/44; B01J23/70; B01J23/74; B01J23/75; B01J23/755; B01J25/00; B01J25/02; B01J29/00; B01J29/04; B01J29/06; B01J31/00; B01J31/02; B01J31/06; B01J31/08; B01J31/16; B01J31/20; B01J37/00; B01J37/02; B01J37/0201; B01J37/03; B01J37/031; C; C07; C07C; C07C29/00; C07C29/132; C07C29/136; C07C29/14; C07C29/141; C07C29/143; C07C29/145; C07C31/00; C07C31/18; C07C31/26; B01J2231/00; B01J2231/60; B01J2231/64; B01J2231/641; B01J2231/643; B01J2531/00; B01J2531/80; B01J2531/84; B01J2531/847
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A CATALYTIC HYDROGENATION PROCESS FOR OBTAINING AN ALCOHOL, FREE FROM THE CORRESPONDING ACID, BY REDUCING A CORRESPONDING CARBONYL COMPOUND SELECTED FROM THE GROUP CONSISTING OF CORRESPONDING ALDEHYDE AND KETONE COMPOUNDS AT A TEMPERATURE FROM 1* TO 150*C. AND A PRESSURE FROM ABOUT 14 TO 2133 POUNDS PER SQUARE INCH, THE PROCESS INCLUDING: CONCURRENTLY CONTACTING HYDROGEN AND AN AQUEOUS SOLUTION, CONSISTING ESSENTIALLY OF THE CORRESPONDING CARBONYL COMPOUND, WITH AN AGGREGATE CONSISTING ESSENTIALLY OF A HYDROGENATION CATALYST AND AN ALKALINE MATERIAL CONSISTING ESSENTIALLY OF A NONSOLUBLE ANION EXCHANGE MATERIAL
Claim 2
Dependent Claim
87 words
A CATALYTIC HYDROGENATION PROCESS FOR OBTAINING AN ALCOHOL, FREE FROM THE CORRESPONDING ACID, BY REDUCING A CORRESPONDING CARBONYL COMPOUND SELECTED FROM THE GROUP CONSISTING OF CORRESPONDING ALDEHYDE AND KETONE COMPOUNDS AT A TEMPERATURE FROM 1* TO 150*C. AND A PRESSURE FROM ABOUT 14 TO 2133 POUNDS PER SQUARE INCH, THE PROCESS INCLUDING: CONCURRENTLY CONTACTING HYDROGEN AND AN AQUEOUS SOLUTION, CONSISTING ESSENTIALLY OF THE CORRESPONDING CARBONYL COMPOUND, WITH AN AGGREGATE CONSISTING ESSENTIALLY OF A HYDROGENATION CATALYST AND AN ALKALINE MATERIAL CONSISTING ESSENTIALLY OF A NONSOLUBLE ANION EXCHANGE MATERIAL
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) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |