US2568619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of beta-hydroxy mono
Assignee: —
•
Filing: —
•
Granted: 1951-09-18
•
Expires: 1968-09-18
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:02
CPC Classifications
C; C07; C07C; C07C69/00; C07C69/66; C07C69/67; C07C69/675; C07C69/68; C07C67/00; C07C67/02; C07D; C07D307/00; C07D307/02; C07D307/26; C07D307/30; C07D307/32; C07D307/33; C08; C08G; C08G63/00; C08G63/78; C08G63/82; C08G63/823
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
THE METHOD WHICH COMPRISES PREPARING A SOLUTION OF FROM 0.01 TO ABOUT 0.1 MOLE OF AN ALKALINE CATALYST IN FROM 1 TO 10 MOLES OF AN ALCOHOL COMPOSED EXCLUSIVELY OF CARBON, HYDROGEN AND OXY-OXYGEN ATOMS, ADDING 1 MOLE OF A BETALACTONE TO SAID SOLUTION WHEREUPON REACTION OCCURS TO FORM AN ESTER OF BETA-HYDROXY MONOCARBOXYLIC ACID, AND SEPARATING SAID ESTER FROM THE RESULTING REACTAION MIXTURE.
Claim 2
Independent Claim
64 words
THE METHOD WHICH COMPRISES PREPARING A SOLUTION OF FROM 0.01 TO ABOUT 0.1 MOLE OF AN ALKALINE CATALYST IN FROM 1 TO 10 MOLES OF AN ALCOHOL COMPOSED EXCLUSIVELY OF CARBON, HYDROGEN AND OXY-OXYGEN ATOMS, ADDING 1 MOLE OF A BETALACTONE TO SAID SOLUTION WHEREUPON REACTION OCCURS TO FORM AN ESTER OF BETA-HYDROXY MONOCARBOXYLIC ACID, AND SEPARATING SAID ESTER FROM THE RESULTING REACTAION MIXTURE.
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) | 1954-09-17 | 1955-03-19 | 1955-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-17 | 1959-03-19 | 1959-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-17 | 1963-03-19 | 1963-09-18 | $7700.00 | Window Closed / Lapsed |