Patent US3267085A successfully refreshed from Google Patents.
US3267085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ethylene-allylalcohol copolymers
Assignee: Millennium Petrochemicals Inc
•
Filing: 1963-01-30
•
Granted: 1966-08-16
•
Expires: 1983-01-30
Abstract
No abstract record available.
Inventors
- 👤 Robert P Shouse
- 👤 Charles R Donaldson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:46
CPC Classifications
C; C08; C08F; C08F16/00; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A PROCESS FOR COPOLYMERIZING ETHYLENE AND ALLYL ALCOHOL WHICH COMPRISES REACTING A MIXTURE OF ETHYLENE AND 0.1 TO 3.0 WEIGHT PERCENT, BASED ON THE ETHYLENE FEED, OF ALLYL ALCOHOL AT A TEMPERATURE BETWEEN ABOUT 250* AND 500*F. AND A PRESSURE BETWEEN ABOUT 17,000 AND ABOUT 30,000 POUNDS PER SQUARE INCH IN THE PRESENCE OF A FREE RADICAL COPOLYMERIZATION CATALYST.
Claim 2
Dependent Claim
59 words
A PROCESS FOR COPOLYMERIZING ETHYLENE AND ALLYL ALCOHOL WHICH COMPRISES REACTING A MIXTURE OF ETHYLENE AND 0.1 TO 3.0 WEIGHT PERCENT, BASED ON THE ETHYLENE FEED, OF ALLYL ALCOHOL AT A TEMPERATURE BETWEEN ABOUT 250* AND 500*F. AND A PRESSURE BETWEEN ABOUT 17,000 AND ABOUT 30,000 POUNDS PER SQUARE INCH IN THE PRESENCE OF A FREE RADICAL COPOLYMERIZATION CATALYST.
References Cited (Backward Citations)
GB669771A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |