Patent US2517006A successfully refreshed from Google Patents.
US2517006A
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Catalytic reaction for the production of unsaturated aliphatic aldehydes
Assignee: Celanese Corp
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Filing: 1948-03-03
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Granted: 1950-08-01
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Expires: 1968-03-03
Abstract
No abstract record available.
Inventors
- 👤 Alexander F Maclean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:18
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/90; B01J23/92; B01J8/00; B01J8/18; B01J8/1845; B01J8/1863; C; C07; C07C; C07C45/00; C07C45/61; C07C45/67; C07C45/68; C07C45/72; C07C45/75; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/584
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
PROCESS FOR THE PRODUCTION OF UNSATURATED ALIPHATIC ALDEHYDES, WHICH COMPRISES REACTING A MIXTURE OF FORMALDEHYDE AND A HIGHER SATURATED ALIPHATIC ALDEHYDE IN THE VAPOR PHASE IN A REACTION ZONE AND IN THE PRESENCE OF A FINELY-DIVIDED CATALYST FOR SAID REACTION WHILE MAINTAINING THE FINELY-DIVIDED CATALYST IN A FLUIDIZED STATE, SEPARATING THE FINELY-DIVIDED CATALYST FROM THE REACTION VAPORS CONTAINING THE UNSATURATED ALDEHYDE,
Claim 2
Dependent Claim
61 words
PROCESS FOR THE PRODUCTION OF UNSATURATED ALIPHATIC ALDEHYDES, WHICH COMPRISES REACTING A MIXTURE OF FORMALDEHYDE AND A HIGHER SATURATED ALIPHATIC ALDEHYDE IN THE VAPOR PHASE IN A REACTION ZONE AND IN THE PRESENCE OF A FINELY-DIVIDED CATALYST FOR SAID REACTION WHILE MAINTAINING THE FINELY-DIVIDED CATALYST IN A FLUIDIZED STATE, SEPARATING THE FINELY-DIVIDED CATALYST FROM THE REACTION VAPORS CONTAINING THE UNSATURATED ALDEHYDE,
References Cited (Backward Citations)
US2245582A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-31 | 1954-01-30 | 1954-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-31 | 1958-01-30 | 1958-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-31 | 1962-01-30 | 1962-08-01 | $7700.00 | Window Closed / Lapsed |