US2549508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of unsaturated ketones and aldehydes
Assignee: Standard Oil Development Co
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Filing: 1948-10-15
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Granted: 1951-04-17
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Expires: 1968-10-15
Abstract
No abstract record available.
Inventors
- 👤 Henry O Mottern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:38
CPC Classifications
C; C07; C07C; C07C49/00; C07C49/20; C07C49/203; C07C45/00; C07C45/61; C07C45/67; C07C45/68; C07C45/72; C07C45/73; C07C45/74; C07C45/75
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A PROCESS FOR THE PREPARATION OF AN UNSATURATED COMPOUND OF INCREASED MOLECULAR WEIGHT SELECTED FROM THE GROUP CONSISTING OF ALDEHYDES AND KETONES WHICH COMPRISES REACTING A MEMBER OF THE GROUP CONSISTING OF ALDEHYDES, KETONES AND MIXTURES THEREOF IN THE VAPOR PHASE IN THE PRESENCE OF HYDROGEN IN THE PRESENCE OF A CATALYST CONSISTING SUBSTANTIALLY OF ZINC OXIDE BASED ON 1 TO 15% BY WEIGHT OF ZIRCONIUM OXIDE BASED ON THE TOTAL WEIGHT OF THE CATALYST MIXTURE AND RECOVERINGS AN UNSATURATED COMPOUND OF INCREASED MOLECULAR WEIGHT FROM THE REACTION.
Claim 2
Dependent Claim
88 words
A PROCESS FOR THE PREPARATION OF AN UNSATURATED COMPOUND OF INCREASED MOLECULAR WEIGHT SELECTED FROM THE GROUP CONSISTING OF ALDEHYDES AND KETONES WHICH COMPRISES REACTING A MEMBER OF THE GROUP CONSISTING OF ALDEHYDES, KETONES AND MIXTURES THEREOF IN THE VAPOR PHASE IN THE PRESENCE OF HYDROGEN IN THE PRESENCE OF A CATALYST CONSISTING SUBSTANTIALLY OF ZINC OXIDE BASED ON 1 TO 15% BY WEIGHT OF ZIRCONIUM OXIDE BASED ON THE TOTAL WEIGHT OF THE CATALYST MIXTURE AND RECOVERINGS AN UNSATURATED COMPOUND OF INCREASED MOLECULAR WEIGHT FROM THE REACTION.
References Cited (Backward Citations)
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-16 | 1954-10-16 | 1955-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-16 | 1958-10-16 | 1959-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-16 | 1962-10-16 | 1963-04-17 | $7700.00 | Window Closed / Lapsed |