Patent US2983734A successfully refreshed from Google Patents.
US2983734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic hydrogenation
Assignee: —
•
Filing: —
•
Granted: 1961-05-09
•
Expires: 1978-05-09
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:57
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/02; C07D307/34; C07D307/38; C07D307/40; C07D307/42; C07D307/44; C07C; C07C29/00; C07C29/132; C07C29/136; C07C29/14; C07C29/141; C07C29/60; C07C31/00; C07C31/02; C07C31/10; C07C31/125; C07C31/18; C07C31/20; C07C31/202; C07C31/205; C07C31/22; C07C31/26
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
70 words
THE METHOD OF REDUCING THE CARBONYL GROUP OF A CARBONYL-CONTAINING ORGANIC COMPOUND TO THE CORRESPONDING CARBINOL GROUP, THE SAID CARBONYL-CONTAINING ORGANIC COMPOUND BEING SELECTED FROM THE CLASS CONSISTING OF ORGANIC KETONES AND ORGANIC ALDEHYDES, WHICH METHOD COMPRISES CONTACTING UNDER SUBSTANTIALLY ANHYDROUS CONDITIONS AND AT A PRESSURE OF AT MOST 150 P.S.I. WITH HYDROGEN A MIXTURE OF SAID ORGANIC COMPOUND, A RANEYTYPE NICKEL HYDROGENATION CATALYST AND A SOLVENT HAVING THE FORMULA
Claim 2
Independent Claim
70 words
THE METHOD OF REDUCING THE CARBONYL GROUP OF A CARBONYL-CONTAINING ORGANIC COMPOUND TO THE CORRESPONDING CARBINOL GROUP, THE SAID CARBONYL-CONTAINING ORGANIC COMPOUND BEING SELECTED FROM THE CLASS CONSISTING OF ORGANIC KETONES AND ORGANIC ALDEHYDES, WHICH METHOD COMPRISES CONTACTING UNDER SUBSTANTIALLY ANHYDROUS CONDITIONS AND AT A PRESSURE OF AT MOST 150 P.S.I. WITH HYDROGEN A MIXTURE OF SAID ORGANIC COMPOUND, A RANEYTYPE NICKEL HYDROGENATION CATALYST AND A SOLVENT HAVING THE FORMULA
Claim 3
Dependent Claim
13 words
THE METHOD OF CLAIM 1 IN WHICH THE CARBONYL-CONTAINING ORGANIC COMPOUND IS FURFURAL.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |