US3213036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphorus cotaining polymerization catalyst
Assignee: Individual
•
Filing: 1963-09-20
•
Granted: 1965-10-19
•
Expires: 1983-09-20
Abstract
No abstract record available.
Inventors
- 👤 Jacque C Morrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:11
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/14; B01J27/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A POLYMERIZATIN CATALYST COMPRISING A DRIED MIXTURE OF A PHOSPHORIC ACID AND AN INORGANIC SUPPORT, SAID SUPPORT CONSISTING OF A NATURAL POROUS SILICA MATERIAL SELECTED FROM THE GROUP CONSISTING OF KIESELGUHR, INFUSORIAL EARTH AND DIATOMACEOUS EARTH AND AN ADDITIVE CONSISTING OF PHOSPHATE OF ALUMINUM INCORPORATED IN SAID MIXTURE THE SAID POSPHORIC ACID COMPRISING ABOUT 60% TO 85% OF THE SAID MIXTURE, SAID SUPPORT CONTAINING NOT LESS THAN ABOUT 70% OF THE SAID POROUS SILICA MATERIAL AND LESS THAN ABOUT 30% AND MORE THAN 1% OF THE SAID ADDITIVE, THE SAID POROUS SILICA MATERIAL TOGETHER WITH SAID ADDITIVE BEING PRESENT IN QUANTITY OF NOT MORE THAN ABOUT 40% OF THE MIXTURE.
Claim 2
Dependent Claim
110 words
A POLYMERIZATIN CATALYST COMPRISING A DRIED MIXTURE OF A PHOSPHORIC ACID AND AN INORGANIC SUPPORT, SAID SUPPORT CONSISTING OF A NATURAL POROUS SILICA MATERIAL SELECTED FROM THE GROUP CONSISTING OF KIESELGUHR, INFUSORIAL EARTH AND DIATOMACEOUS EARTH AND AN ADDITIVE CONSISTING OF PHOSPHATE OF ALUMINUM INCORPORATED IN SAID MIXTURE THE SAID POSPHORIC ACID COMPRISING ABOUT 60% TO 85% OF THE SAID MIXTURE, SAID SUPPORT CONTAINING NOT LESS THAN ABOUT 70% OF THE SAID POROUS SILICA MATERIAL AND LESS THAN ABOUT 30% AND MORE THAN 1% OF THE SAID ADDITIVE, THE SAID POROUS SILICA MATERIAL TOGETHER WITH SAID ADDITIVE BEING PRESENT IN QUANTITY OF NOT MORE THAN ABOUT 40% OF THE MIXTURE.
References Cited (Backward Citations)
US1993512A
Cited
US2586852A
Cited
US2656323A
Cited
US2692242A
Cited
US2713560A
Cited
US3044964A
Cited
US3050472A
Cited
US3050473A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |