US3047618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for condensing aldehydes to esters
Assignee: Gulf Research and Development Co
•
Filing: 1960-05-18
•
Granted: 1962-07-31
•
Expires: 1980-05-18
Abstract
No abstract record available.
Inventors
- 👤 Charles M Selwitz
- 👤 Robert A Walde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:08
CPC Classifications
C; C07; C07C; C07C67/00; C07C67/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A PROCESS FOR CONDENSING ALDEHYDES IN A MIXTURE CONTAINING A HYDROCARBON ALDEHYDE SELECTED FROM THE GROUP CONSISTING OF SATURATED ALIPHATIC ALDEHYDES AND AROMATIC ALDEHYDES AND A HYDROCARBON KETONE WHICH COMPRISES CONDENSING SUCH ALDEHYDS IN THE PRESENCE OF A CATALYST OBTAINED BY REACTING AN ALUMINUM TRIALKY WITH A HYDROCARBON ALDEHYDE SELECTED FROM THE GROUP CONSISTING OF SATURATED ALIPHATIC ALDEHYDES AND AROMATIC ALDEHYES, SAID CATALYST HAVING BEEN OBTAINED AT A TEMPERATURE UP TO ABOUT 100*C. AND A PRESSURE UP TO ABOUT 1000 POUNDS PER SQUARE INCH GAUGE.
Claim 2
Dependent Claim
85 words
A PROCESS FOR CONDENSING ALDEHYDES IN A MIXTURE CONTAINING A HYDROCARBON ALDEHYDE SELECTED FROM THE GROUP CONSISTING OF SATURATED ALIPHATIC ALDEHYDES AND AROMATIC ALDEHYDES AND A HYDROCARBON KETONE WHICH COMPRISES CONDENSING SUCH ALDEHYDS IN THE PRESENCE OF A CATALYST OBTAINED BY REACTING AN ALUMINUM TRIALKY WITH A HYDROCARBON ALDEHYDE SELECTED FROM THE GROUP CONSISTING OF SATURATED ALIPHATIC ALDEHYDES AND AROMATIC ALDEHYES, SAID CATALYST HAVING BEEN OBTAINED AT A TEMPERATURE UP TO ABOUT 100*C. AND A PRESSURE UP TO ABOUT 1000 POUNDS PER SQUARE INCH GAUGE.
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) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |