US3652706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of olefins
Assignee: Texaco Inc
•
Filing: 1969-09-16
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Granted: 1972-03-28
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Expires: 1989-09-16
Abstract
Abstract AN OLEFIN HYDROCARBON POLYMERIZATIN PROCESS WHICH PRODUCES A PLOYMER HAVING A MOLECULAR WEIGHT WITHIN THE RANGE OF FROM ABOUT 700 TO ABOUT 2500, BY POLYMERIZING SUCH OLEFINS IN THE PRESENCE OF A CATALYST SYSTEM COMPRISING A FRIEDEL-CRAFTS METAL HALIDE IN ADMIXTURE WITH THE HYDROGEN FORM OF MORDENITE PREFERABLY IN THE PRESENCE OF ALUMINUM BROMIDE IN ADMIXTURE WITH THE HYDROGEN FORM OF SYNTHETIC MORDENITE.
Inventors
- 👤 George S Saines
- 👤 Stanley Kravitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:03
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-28 | 1975-09-27 | 1976-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-28 | 1979-09-27 | 1980-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-28 | 1983-09-27 | 1984-03-28 | $7700.00 | Window Closed / Lapsed |