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US3468866A
Expired / Lapsed
US
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Process for polymerizing butadiene in the presence of reaction products of pi-allylic complexes of transition metal and organic electron acceptors
Assignee: Individual
•
Filing: 1967-05-26
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Granted: 1969-09-23
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Expires: 1987-05-26
Abstract
No abstract record available.
Inventors
- 👤 Alexandr Vasilievich Alferov
- 👤 Boris Davidovich Babitsky
- 👤 Tatiana Konstantinovna Vydrina
- 👤 Boris Alexandrovich Dolgoplosk
- 👤 Vitaly Abramovich Kormer
- 👤 Vladimir Alexandrovich Krol
- 👤 Mark Iosifovich Lobach
- 👤 Evgenia Aronovna Mushina
- 👤 Gali Alexandrovna Parfenova
- 👤 Stepanida Trofimovna Romanova
- 👤 Elena Vladimirovna Sakharova
- 👤 Elena Ivanovna Tinyakova
- 👤 Oleg Konstantinovich Sharaev
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:17
CPC Classifications
C; C08; C08F; C08F136/00; C08F136/02; C08F136/04; C08F136/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2898329A
Cited
US2881156A
Cited
US2965627A
Cited
US3163611A
Cited
US3045001A
Cited
US3046265A
Cited
US3379706A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-22 | 1973-03-24 | 1973-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-22 | 1977-03-24 | 1977-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-22 | 1981-03-24 | 1981-09-23 | $7700.00 | Window Closed / Lapsed |