US2547178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbonylation catalyst recovery
Assignee: California Research LLC
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Filing: 1948-08-25
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Granted: 1951-04-03
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Expires: 1968-08-25
Abstract
No abstract record available.
Inventors
- 👤 John A Spence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:41
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/49; C07C45/50; B; B01; B01J; B01J23/00; B01J23/70; B01J31/00; B01J31/16; B01J31/20; B01J38/00; B01J38/48; B01J38/60; B01J38/62; B01J38/70; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/584
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
THE RECOVERY OF CARBONYL-FORMING METAL CATALYSTS FROM THE ORGANIC PRODUCTS OF A CATALYTIC CONVERSION PROCESS EMPLOYING SAID CARBONYLFORMING METAL AS AN ACTIVE CATALYST COMPONENT WHICH COMPRISES CONTACTING SAID ORGANIC PRODUCTS WITH AN OXYGEN-CONTAINING GAS AT A TEMPERATURE BELOW THE EFFECTIVE OXIDATION TEMPERATURE OF SAID ORGANIC PRODUCTS FOR A PERIOD OF TIME SUFFICIENT TO OXIDIZE THE ENTRAINED METAL COMPOUNDS INTO A RECOVERABLE FORM AND SEPARATING THE RESULTING OXIDIZED METAL COMPOUNDS FROM SAID ORGANIC PRODUCTS.
Claim 2
Dependent Claim
73 words
THE RECOVERY OF CARBONYL-FORMING METAL CATALYSTS FROM THE ORGANIC PRODUCTS OF A CATALYTIC CONVERSION PROCESS EMPLOYING SAID CARBONYLFORMING METAL AS AN ACTIVE CATALYST COMPONENT WHICH COMPRISES CONTACTING SAID ORGANIC PRODUCTS WITH AN OXYGEN-CONTAINING GAS AT A TEMPERATURE BELOW THE EFFECTIVE OXIDATION TEMPERATURE OF SAID ORGANIC PRODUCTS FOR A PERIOD OF TIME SUFFICIENT TO OXIDIZE THE ENTRAINED METAL COMPOUNDS INTO A RECOVERABLE FORM AND SEPARATING THE RESULTING OXIDIZED METAL COMPOUNDS FROM SAID ORGANIC PRODUCTS.
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) | 1954-04-02 | 1954-10-02 | 1955-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-02 | 1958-10-02 | 1959-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-02 | 1962-10-02 | 1963-04-03 | $7700.00 | Window Closed / Lapsed |