US2765346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alcohols by borohydride reduction of
Assignee: —
•
Filing: —
•
Granted: 1956-10-02
•
Expires: 1973-10-02
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:43
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/132; C07C29/136; C07C29/143; C07C29/145; C07C29/147; C07C33/00; C07C33/40; C07C33/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A PROCESS FOR THE PREPARATION OF AN ALCOHOL BY REDUCTION OF A CARBOXYLIC ACID ESTER WHICH COMPRISES REDUCTING THE ESTER BY MEANS OF AN ALKALI METAL BOROHYDRIDE OF MOLECULAR WEIGHT AT LEAST 38 AND AT LEAST 54.1 IN ADMIXTURE WITH A SUBSTANTIALLY STOICHIOMETRICALLY EQUIVALENT PROPORTION OF A MEMBER OF THE CLASS CONSISTING OF LITHIUM CHLORIDE, IODIDE, AND NITRATE.
Claim 2
Dependent Claim
58 words
A PROCESS FOR THE PREPARATION OF AN ALCOHOL BY REDUCTION OF A CARBOXYLIC ACID ESTER WHICH COMPRISES REDUCTING THE ESTER BY MEANS OF AN ALKALI METAL BOROHYDRIDE OF MOLECULAR WEIGHT AT LEAST 38 AND AT LEAST 54.1 IN ADMIXTURE WITH A SUBSTANTIALLY STOICHIOMETRICALLY EQUIVALENT PROPORTION OF A MEMBER OF THE CLASS CONSISTING OF LITHIUM CHLORIDE, IODIDE, AND NITRATE.
References Cited (Backward Citations)
US2534533A
Cited
US2683721A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-02 | 1960-04-02 | 1960-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-02 | 1964-04-02 | 1964-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-02 | 1968-04-02 | 1968-10-02 | $7700.00 | Window Closed / Lapsed |