US2909513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of ethylene with an initiator containing tertiary alkyl perester and tertiary alkyl hydroperoxide
Assignee: EIDP Inc
•
Filing: 1956-10-09
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Granted: 1959-10-20
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Expires: 1976-10-09
Abstract
No abstract record available.
Inventors
- 👤 Overbaugh Sidney Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:11
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/18; C08F; C08F110/00; C08F110/02; C08J2323/00; C08J2323/02; C08J2323/04; C08J2323/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
A PROCESS FOR POLYMERIZING EHTYLENE IN A CONTINOUS REACTOR UNDER CONSTANT ENVIROMENT CONDITIONS AT A TEMPERATURE OF 150* TO 230*C. UNDER A PRESSURE ABOVE 1000 ATMOSPHERES IN THE PRESENCE OF A POLYMERIZATION INITIATOR OF THE FORMULA
Claim 2
Dependent Claim
36 words
A PROCESS FOR POLYMERIZING EHTYLENE IN A CONTINOUS REACTOR UNDER CONSTANT ENVIROMENT CONDITIONS AT A TEMPERATURE OF 150* TO 230*C. UNDER A PRESSURE ABOVE 1000 ATMOSPHERES IN THE PRESENCE OF A POLYMERIZATION INITIATOR OF THE FORMULA
References Cited (Backward Citations)
US2497323A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-19 | 1963-04-20 | 1963-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-19 | 1967-04-20 | 1967-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-19 | 1971-04-20 | 1971-10-20 | $7700.00 | Window Closed / Lapsed |