US3044964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst and process of making the same
Assignee: Individual
•
Filing: 1958-12-15
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Granted: 1962-07-17
•
Expires: 1978-12-15
Abstract
No abstract record available.
Inventors
- 👤 Jacque C Morrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:08
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/14; B01J27/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A POLYMERIZATION CATALYST COMPRISING A DIRED MIXTURE OF A PHOSPHORIC ACID AND AN INORGANIC SUPPORT, SAID SUPPORT CONSISTING OF A NATURAL POROUS SILICA MATERIAL SELECTED FROM THE GROUP CONSISTING OF INFUSORIAL EARTH, DIATOMACEOUS EARTH AND DIESELGUHR AND ADDED KAOLIN, THE SAID PHOSPHORIC ACID COMPRISING ABOUT 60% TO 85% OF THE SAID MIXTURE, SAID SUPPORTING COMPRISING NOT LESS THAN ABOUT 60% OF THE SAID POROUS SILICA MATERIAL AND LESS THAN ABOUT 40% AND MORE THAN 1% OF SAID KAOLIN, SAID SUPPORT BEING FURTHER CHARCTERIZZED IN THAT THE SAID POROUS SILICA MATERIAL TOGETHER WITH THE KAOLIN COMPRISES NOT MORE THAN ABOUT 40% OF THE MIXTURE.
Claim 2
Dependent Claim
103 words
A POLYMERIZATION CATALYST COMPRISING A DIRED MIXTURE OF A PHOSPHORIC ACID AND AN INORGANIC SUPPORT, SAID SUPPORT CONSISTING OF A NATURAL POROUS SILICA MATERIAL SELECTED FROM THE GROUP CONSISTING OF INFUSORIAL EARTH, DIATOMACEOUS EARTH AND DIESELGUHR AND ADDED KAOLIN, THE SAID PHOSPHORIC ACID COMPRISING ABOUT 60% TO 85% OF THE SAID MIXTURE, SAID SUPPORTING COMPRISING NOT LESS THAN ABOUT 60% OF THE SAID POROUS SILICA MATERIAL AND LESS THAN ABOUT 40% AND MORE THAN 1% OF SAID KAOLIN, SAID SUPPORT BEING FURTHER CHARCTERIZZED IN THAT THE SAID POROUS SILICA MATERIAL TOGETHER WITH THE KAOLIN COMPRISES NOT MORE THAN ABOUT 40% OF THE MIXTURE.
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) | 1965-07-16 | 1966-01-15 | 1966-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-16 | 1970-01-15 | 1970-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-16 | 1974-01-15 | 1974-07-17 | $7700.00 | Window Closed / Lapsed |