Patent US2965691A successfully refreshed from Google Patents.
US2965691A
Expired / Lapsed
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Preparation of viscous polymers
Assignee: Sunoco Inc
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Filing: 1959-04-06
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Granted: 1960-12-20
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Expires: 1979-04-06
Abstract
No abstract record available.
Inventors
- 👤 Sterling E Voltz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:39
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
POLYMERIZATION METHOD FOR FORMING VISCOUS POLYMERS WHICH COMPRISES CONTACTING, UNDER POLYMERIZING CONDITIONS INCLUDING A TEMPERATURE IN THE RANGE OF 0-150* C., AN ALPHA-MONOOLEFIN HAVING THE FORMULA
Claim 2
Dependent Claim
26 words
POLYMERIZATION METHOD FOR FORMING VISCOUS POLYMERS WHICH COMPRISES CONTACTING, UNDER POLYMERIZING CONDITIONS INCLUDING A TEMPERATURE IN THE RANGE OF 0-150* C., AN ALPHA-MONOOLEFIN HAVING THE FORMULA
References Cited (Backward Citations)
US2220930A
Cited
US2786035A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |