US2507625A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst for conversion of hydrocarbons
Assignee: Universal Oil Products Co
•
Filing: 1946-08-03
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Granted: 1950-05-16
•
Expires: 1966-08-03
Abstract
No abstract record available.
Inventors
- 👤 Charles H Ehrhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:42
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/14; B01J27/16; B01J35/00; B01J35/50; B01J35/51
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A CATALYST PREPARED BY CALCINING A SILICA GELMAGENESIA COMPOSITE IMPREGNATED WITH AN AMMONIUM PHOSPHATE SOLUTION, SAID CATALYST CONTAINING FROM ABOUT 20% TO ABOUT 30% BY WEIGHT OF MAGNESIA AND FROM ABOUT 0.5% TO ABOUT 5% BY WEIGHT OF THE RESIDUAL PHOSPHORUS COMPOUND OF SAID PHOSPHATE, THE REMAINDER OF THE CATALYST BEING SILICA GEL.
Claim 2
Dependent Claim
53 words
A CATALYST PREPARED BY CALCINING A SILICA GELMAGENESIA COMPOSITE IMPREGNATED WITH AN AMMONIUM PHOSPHATE SOLUTION, SAID CATALYST CONTAINING FROM ABOUT 20% TO ABOUT 30% BY WEIGHT OF MAGNESIA AND FROM ABOUT 0.5% TO ABOUT 5% BY WEIGHT OF THE RESIDUAL PHOSPHORUS COMPOUND OF SAID PHOSPHATE, THE REMAINDER OF THE CATALYST BEING SILICA GEL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-15 | 1953-11-14 | 1954-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-15 | 1957-11-14 | 1958-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-15 | 1961-11-14 | 1962-05-16 | $7700.00 | Window Closed / Lapsed |