US2690457A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process fok the production of un
Assignee: —
•
Filing: —
•
Granted: 1954-09-28
•
Expires: 1971-09-28
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:53
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/27; C07C45/32; C07C45/33; C07C45/34; C07C45/35; C07C45/61; C07C45/62; C07C47/00; C07C47/20; C07C47/21; C07C49/00; C07C49/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
IN A PROCESS FOR THE PRODUCTION OF AN UNSATURATED CARBONYLIC COMPOUND OF THE GROUP CONSISTING OF ALPHA,BETA-OLEFINICALLY UNSATURATED ALDEHYDES AND THE ALPHA,BETA-OLEFINICALLY UNSATURATED KETONES BY OXIDATION OF AN OLEFIN CONTAINING AT LEAST THREE CARBON ATOMS IN THE PRESENCE OF CUPROUS OXIDE, THE STEP WHICH COMPRISES PASSING A GASEOUS MIXTURE COMPRISING AN OLEFIN CONTAINING AT LEAST THREE CARBON ATOMS AND OXYGEN INTO CONTACT AT A TEMPERATURE OF FROM ABOUT 250* C. TO 400* C. WITH A SOLID CATALYST ESSENTIALLY COMPRISING CUPROUS OXIDE PROMOTED BY PALLADIUM.
Claim 2
Dependent Claim
84 words
IN A PROCESS FOR THE PRODUCTION OF AN UNSATURATED CARBONYLIC COMPOUND OF THE GROUP CONSISTING OF ALPHA,BETA-OLEFINICALLY UNSATURATED ALDEHYDES AND THE ALPHA,BETA-OLEFINICALLY UNSATURATED KETONES BY OXIDATION OF AN OLEFIN CONTAINING AT LEAST THREE CARBON ATOMS IN THE PRESENCE OF CUPROUS OXIDE, THE STEP WHICH COMPRISES PASSING A GASEOUS MIXTURE COMPRISING AN OLEFIN CONTAINING AT LEAST THREE CARBON ATOMS AND OXYGEN INTO CONTACT AT A TEMPERATURE OF FROM ABOUT 250* C. TO 400* C. WITH A SOLID CATALYST ESSENTIALLY COMPRISING CUPROUS OXIDE PROMOTED BY PALLADIUM.
References Cited (Backward Citations)
GB290613A
Cited
US2020671A
Cited
US1871117A
Cited
US2366724A
Cited
US2383711A
Cited
US2398612A
Cited
US2430443A
Cited
US2451485A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-27 | 1958-03-29 | 1958-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-27 | 1962-03-29 | 1962-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-27 | 1966-03-29 | 1966-09-28 | $7700.00 | Window Closed / Lapsed |