Patent US3299017A successfully refreshed from Google Patents.
US3299017A
Expired / Lapsed
US
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Copolymers of 1, 3-butadiene and a norbornadiene
Assignee: Phillips Petroleum Co
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Filing: 1963-04-29
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Granted: 1967-01-17
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Expires: 1983-04-29
Abstract
No abstract record available.
Inventors
- 👤 Robert P Zelinski
- 👤 Floyd E Naylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:51
CPC Classifications
C; C08; C08F; C08F236/00; C08F236/02; C08F236/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
IN A PROCESS FOR POLYMERIZING 1,3-BUTADIENE WITH AN IODINE CONTAINING CATALYST WHICH FORMS ON MIXING COMPONENTS COMPRISING AN ORGANOMETAL COMPONENT AND A TITANIUM HALIDE COMPONENT, THE IMPROVEMENT WHICH COMPRISES POLYMERIZING SAID 1,3-BUTADIENE WITH A MINOR AMOUNT OF A NORBORNADIENE HAVING THE FOLLOWING FORMULA
Claim 2
Dependent Claim
43 words
IN A PROCESS FOR POLYMERIZING 1,3-BUTADIENE WITH AN IODINE CONTAINING CATALYST WHICH FORMS ON MIXING COMPONENTS COMPRISING AN ORGANOMETAL COMPONENT AND A TITANIUM HALIDE COMPONENT, THE IMPROVEMENT WHICH COMPRISES POLYMERIZING SAID 1,3-BUTADIENE WITH A MINOR AMOUNT OF A NORBORNADIENE HAVING THE FOLLOWING FORMULA
References Cited (Backward Citations)
US3220999A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |