US2521170A
Expired / Lapsed
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Process for aldehydo isomerization of olefin alpha oxides
Assignee: Wyandotte Chemicals Corp
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Filing: 1949-07-23
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Granted: 1950-09-05
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Expires: 1969-07-23
Abstract
No abstract record available.
Inventors
- 👤 Edward C Jacobs
- 👤 Lester G Lundsted
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:09
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/86; B01J23/862; B01J23/16; B01J23/24; B01J23/26; B01J23/30; C; C07; C07C; C07C45/00; C07C45/56; C07C45/57; C07C45/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
THE PROCESS OF PRODUCING ALDEHYDES FROM OLEFIN ALPHA OXIDES WHICH COMPRISES HEATING SAID OXIDES IN CONTACT WITH A CATALYST COMPOSITION DERIVED FROM A DEHYDRATED, AMMONIACAL GEL MIXTURE OF CHROMIC OXIDE, CADMIUM CHLORIDE AND CADMIUM OXIDE.
Claim 2
Dependent Claim
35 words
THE PROCESS OF PRODUCING ALDEHYDES FROM OLEFIN ALPHA OXIDES WHICH COMPRISES HEATING SAID OXIDES IN CONTACT WITH A CATALYST COMPOSITION DERIVED FROM A DEHYDRATED, AMMONIACAL GEL MIXTURE OF CHROMIC OXIDE, CADMIUM CHLORIDE AND CADMIUM OXIDE.
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) | 1953-09-04 | 1954-03-06 | 1954-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-04 | 1958-03-06 | 1958-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-04 | 1962-03-06 | 1962-09-05 | $7700.00 | Window Closed / Lapsed |