US2548159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Group viii silicate catalyst on nonsiliceous support
Assignee: Shell Development Co
•
Filing: 1948-01-13
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Granted: 1951-04-10
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Expires: 1968-01-13
Abstract
No abstract record available.
Inventors
- 👤 Houtman Johannes Paulus Willem
- 👤 Engel Willem Frederik
- 👤 Hogg Han
- 👤 Peter Van T Spijker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:34
CPC Classifications
C; C07; C07C; C07C1/00; C07C1/02; C07C1/04; C07C1/0425; C07C1/043; C07C1/0435; B; B01; B01J; B01J23/00; B01J23/70; B01J23/74; B01J23/76; B01J23/83; C07C1/0445; C07C29/00; C07C29/15; C07C29/151; C07C29/153; C07C29/156; C07C29/16; C07C45/00; C07C45/49; C07C2521/00; C07C2521/02; C07C2521/04; C07C2521/10; C07C2521/16; C07C2523/00; C07C2523/70; C07C2523/74; C07C2523/75; C07C2527/00; C07C2527/02; C07C2527/053
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A HYDROGENATION CATALYST CONSISTING ESSENTIALLY OF A RELATIVELY INERT, SILICA-FREE ALUMINOUS SUPPORT, A PRECIPITATED SILICATE OF A METAL OF GROUP VIII PRESENT AS A SILICATE BEING ABOUT 0.5% ASSOCIATION THEREWITH, THE AMOUNT OF METAL OF GROUP VIII PRESENT AS A SILICATE BEING ABOUT 0.5% AND 60% OF THE TOTAL AMOUNT OF SAID METAL, THE TOTAL AMOUNT OF SAID METAL BEING BETWEEN ABOUT 10% AND 60% ON THE FINISHED CATALYST.
Claim 2
Dependent Claim
69 words
A HYDROGENATION CATALYST CONSISTING ESSENTIALLY OF A RELATIVELY INERT, SILICA-FREE ALUMINOUS SUPPORT, A PRECIPITATED SILICATE OF A METAL OF GROUP VIII PRESENT AS A SILICATE BEING ABOUT 0.5% ASSOCIATION THEREWITH, THE AMOUNT OF METAL OF GROUP VIII PRESENT AS A SILICATE BEING ABOUT 0.5% AND 60% OF THE TOTAL AMOUNT OF SAID METAL, THE TOTAL AMOUNT OF SAID METAL BEING BETWEEN ABOUT 10% AND 60% ON THE FINISHED CATALYST.
References Cited (Backward Citations)
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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) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |