US2910522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extractive alkylation process
Assignee: Universal Oil Products Co
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Filing: 1957-11-05
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Granted: 1959-10-27
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Expires: 1977-11-05
Abstract
No abstract record available.
Inventors
- 👤 Clarence G Gerhold
- 👤 Robert E Sutherland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:00
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/62; C07C2/86; C07C2/861; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/12; C07C2527/1206; Y; Y10; Y10S; Y10S585/00; Y10S585/919; Y10S585/921; Y10S585/924; Y10S585/926
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A PROCESS FOR CONDENSING AN ALKYLABLE MATERIAL WITH AN OLEFIN-ACTING ORGANIC COMPOUNDF WHICH COMPRISES PASSING A MIXTURE AND SAID OLEFIN-ACTING COMPOUND INTO ALKYLATABLE MATERIAL AND SAID OLEFIN-ACTING COMPOUND INTO A VERTICAL MULTI-STAGE CONTACTING VESSEL AT AN INTERMEDIATE POINT IN THE HEIGHT THEREOF, INTRODUCING ACID CATALYST INTO AN UPPER PORTION OF AND PASSING THE SAME DOWNWARDLY THROUGH SAID VESSEL, INTRODUCING ANOTHER PORTION OF SAID ALKYLATABLE MATERIAL INTO SAID VESSEL BELOW SAID INTERMEDIATE POINT, COUNTERCURRENTLY CONTACTING THE CATALYST AND REACTANTS AT ALKYLATING CONDITIONS IN SAID VESSEL, WITHDRAWING ACID CATALYST FROM THE BOTTOM OF SAID VESSEL AND COOLING AND RETURNING THE SAME TO THE UPPER PART
Claim 2
Dependent Claim
103 words
A PROCESS FOR CONDENSING AN ALKYLABLE MATERIAL WITH AN OLEFIN-ACTING ORGANIC COMPOUNDF WHICH COMPRISES PASSING A MIXTURE AND SAID OLEFIN-ACTING COMPOUND INTO ALKYLATABLE MATERIAL AND SAID OLEFIN-ACTING COMPOUND INTO A VERTICAL MULTI-STAGE CONTACTING VESSEL AT AN INTERMEDIATE POINT IN THE HEIGHT THEREOF, INTRODUCING ACID CATALYST INTO AN UPPER PORTION OF AND PASSING THE SAME DOWNWARDLY THROUGH SAID VESSEL, INTRODUCING ANOTHER PORTION OF SAID ALKYLATABLE MATERIAL INTO SAID VESSEL BELOW SAID INTERMEDIATE POINT, COUNTERCURRENTLY CONTACTING THE CATALYST AND REACTANTS AT ALKYLATING CONDITIONS IN SAID VESSEL, WITHDRAWING ACID CATALYST FROM THE BOTTOM OF SAID VESSEL AND COOLING AND RETURNING THE SAME TO THE UPPER PART
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) | 1962-10-26 | 1963-04-27 | 1963-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-26 | 1967-04-27 | 1967-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-26 | 1971-04-27 | 1971-10-27 | $7700.00 | Window Closed / Lapsed |