US2874191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of acetone
Assignee: Standard Oil Co
•
Filing: 1956-12-28
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Granted: 1959-02-17
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Expires: 1976-12-28
Abstract
No abstract record available.
Inventors
- 👤 Robert W Foreman
- 👤 James L Callahan
- 👤 Veatch Franklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:30
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/27; C07C45/28
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
51 words
PROCESS FOR MANUFACTURING ACETONE FROM PROPYLENE COMPRISING THE STEP OF CONTACTING PROPYLENE IN THE VAPOR PHASE AT AN ELEVATED TEMPERATURE AND IN THE ABSENCEE OF MOLECULAR OXYGEN WITH A SOLID OXIDANT COMPRISING BISMUTH PHOSPHOMOLYBDATE ON A SUPPORT SELECTED FROM THE GROUP CONSISTING OF ALUMINA AND ALUMINA-SILICA CONTAINING AT LEAST 20% ALUMINA.
Claim 2
Dependent Claim
51 words
PROCESS FOR MANUFACTURING ACETONE FROM PROPYLENE COMPRISING THE STEP OF CONTACTING PROPYLENE IN THE VAPOR PHASE AT AN ELEVATED TEMPERATURE AND IN THE ABSENCEE OF MOLECULAR OXYGEN WITH A SOLID OXIDANT COMPRISING BISMUTH PHOSPHOMOLYBDATE ON A SUPPORT SELECTED FROM THE GROUP CONSISTING OF ALUMINA AND ALUMINA-SILICA CONTAINING AT LEAST 20% ALUMINA.
Claim 3
Dependent Claim
26 words
A SOLID OXIDANT COMPRISING BISMUTH PHOSPHOMOLYBDATE ON A SUPPORT SELECTED FROM THE GROUP CONSISTING OF ALUMINA AND A SILICA-CONTAINING AT LEAST 20% BY WEIGHT OF ALUMINA.
Claim 4
Dependent Claim
26 words
A SOLID OXIDANT COMPRISING BISMUTH PHOSPHOMOLYBDATE ON A SUPPORT SELECTED FROM THE GROUP CONSISTING OF ALUMINA AND A SILICA-CONTAINING AT LEAST 20% BY WEIGHT OF ALUMINA.
References Cited (Backward Citations)
US2523686A
Cited
US2625519A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |