US2815393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of spent alkylation acid catalyst
Assignee: Phillips Petroleum Co
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Filing: 1954-04-29
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Granted: 1957-12-03
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Expires: 1974-04-29
Abstract
No abstract record available.
Inventors
- 👤 Jesse M Brooke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:57
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/06; C; C07; C07C; C07C9/00; C07C9/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
THE TREATMENT OF A SPENT HYDROFLUORIC ACID ALKYLATION CATALYST TO CONVERT LOW-BOILING CATALYST-SOLUBLE OILS THEREIN TO HIGHER-BOILING CATALYST-SOLUBLE MATERIAL WHICH COMPRISES CONTACTING SAID ACID UNDER CONDITIONS WHICH DO NOT DECOMPOSE SAID OILS WITH ACTIVATED CARBON FOR
Claim 2
Dependent Claim
36 words
THE TREATMENT OF A SPENT HYDROFLUORIC ACID ALKYLATION CATALYST TO CONVERT LOW-BOILING CATALYST-SOLUBLE OILS THEREIN TO HIGHER-BOILING CATALYST-SOLUBLE MATERIAL WHICH COMPRISES CONTACTING SAID ACID UNDER CONDITIONS WHICH DO NOT DECOMPOSE SAID OILS WITH ACTIVATED CARBON FOR
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) | 1960-12-02 | 1961-06-03 | 1961-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-02 | 1965-06-03 | 1965-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-02 | 1969-06-03 | 1969-12-03 | $7700.00 | Window Closed / Lapsed |