US3573266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization and copolymerization of olefins and resulting products
Assignee: Solvay SA
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Filing: 1967-07-10
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Granted: 1971-03-30
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Expires: 1987-07-10
Abstract
Abstract OLEFINS ARE POLYMERIZED AND COPOLYMERIZED BY BEING CONTACTED WITH A CATALYST OF THE FOLLOWING COMPONENTS: (A) A GROUP IV, V OR VI METAL OR A HYDRIDE OR AN ORGANOMETALLIC COMPOUND THEREOF; (B) AN ALKOXY HALIDE OF TITANIUM, ZIRCONIUM OR VANADIUM AND (C) A HALIDE OF A GROUP III OR V ELEMENT. THERE CANTHUS BE OBTAINED POLYOLEFINS WHICH ARE MORE LINEAR AND CRYSTALLINE THAN THOSE OF THE PRIOR ART.
Inventors
- 👤 Jacques Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:25
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) | 1974-03-29 | 1974-09-28 | 1975-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-29 | 1978-09-28 | 1979-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-29 | 1982-09-28 | 1983-03-30 | $7700.00 | Window Closed / Lapsed |