US2818392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing an alkylation catalyst
Assignee: Universal Oil Products Co
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Filing: 1954-10-26
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Granted: 1957-12-31
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Expires: 1974-10-26
Abstract
No abstract record available.
Inventors
- 👤 Herbert R Appell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:14
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/62; B; B01; B01J; B01J27/00; B01J27/06; B01J27/14; B01J27/16; C07C2521/00; C07C2521/18; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/12; C07C2527/1213; C07C2527/14; C07C2527/16; C07C2527/167; C07C2527/173; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A METHOD OF PRODUCING A CATALYST WHICH COMPRISES IMPREGANTING A SOLID SUPPORT SELECTED FROM THE GROUP CONSISTING OF SILICEOUS AND CARBONACEOUS ABSORBENTS WITH AN AQUEOUS SOLUTION OF A PHOSPHORIC ACID, DRYING THE COMPOSITE AT A TEMPERATURE OF FROM ABOUT 100*C. TO ABOUT 600*C., AND SUBSEQUENTLY IMPREGNATING THR RESULTANT SOLID MATERIAL WITH BORON TRIFLUORIDE.
Claim 2
Independent Claim
53 words
A METHOD OF PRODUCING A CATALYST WHICH COMPRISES IMPREGANTING A SOLID SUPPORT SELECTED FROM THE GROUP CONSISTING OF SILICEOUS AND CARBONACEOUS ABSORBENTS WITH AN AQUEOUS SOLUTION OF A PHOSPHORIC ACID, DRYING THE COMPOSITE AT A TEMPERATURE OF FROM ABOUT 100*C. TO ABOUT 600*C., AND SUBSEQUENTLY IMPREGNATING THR RESULTANT SOLID MATERIAL WITH BORON TRIFLUORIDE.
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) | 1960-12-30 | 1961-07-01 | 1961-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-30 | 1965-07-01 | 1965-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-30 | 1969-07-01 | 1969-12-31 | $7700.00 | Window Closed / Lapsed |