US2868823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkylation catalyst
Assignee: Texaco Inc
•
Filing: 1954-11-29
•
Granted: 1959-01-13
•
Expires: 1974-11-29
Abstract
No abstract record available.
Inventors
- 👤 Herman D Kluge
- 👤 Fred W Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:59
CPC Classifications
C; C07; C07C; C07C309/00; C07C309/01; C07C309/02; C07C309/03; C07C309/04; B; B01; B01J; B01J27/00; B01J27/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
A COMPOUND OF THE GENERAL FORMULA AICI2RSO3, WHEREIN RSO3 STANDS FOR A HYDROCARBYL SULFONIC ACID RESIDUE, SAID COMPOUND BEING SUITABLE FOR HOMOGENEOUS BLENDING INTO AN ALKYLATION REACTION MIXTURE AS A CATALYST THEREFOR.
Claim 2
Dependent Claim
32 words
A COMPOUND OF THE GENERAL FORMULA AICI2RSO3, WHEREIN RSO3 STANDS FOR A HYDROCARBYL SULFONIC ACID RESIDUE, SAID COMPOUND BEING SUITABLE FOR HOMOGENEOUS BLENDING INTO AN ALKYLATION REACTION MIXTURE AS A CATALYST THEREFOR.
References Cited (Backward Citations)
US1149712A
Cited
US1438101A
Cited
US1495891A
Cited
US2311531A
Cited
US2550413A
Cited
US2570263A
Cited
US2671117A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-12 | 1962-07-14 | 1963-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-12 | 1966-07-14 | 1967-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-12 | 1970-07-14 | 1971-01-13 | $7700.00 | Window Closed / Lapsed |