US3696086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing copolymers of ethylene and alpha-olefins
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1970-07-28
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Granted: 1972-10-03
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Expires: 1990-07-28
Abstract
Abstract THIS INVENTION IS DIRECTED TO A NOVEL PROCESS FOR PREPARING COPOLYMERS OF ETHYLENE AND CERTAIN ALPHA OLEFINS (INCLUDING TERPOLYMERS WITH DINES) BY REACTION IN THE PRESENCE OF VANADIUM OR TITANIUM CATALYSTS TOGETHER WITH ALUMINUM COCATALYSTS.
Inventors
- 👤 Joseph Wagensommer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:04
CPC Classifications
C; C08; C08F; C08F210/00
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) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |