US3275614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing cis-1, 4-polybutadiene with a catalyst containing an organic iodine compound
Assignee: Bayer AG
•
Filing: 1962-07-25
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Granted: 1966-09-27
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Expires: 1982-07-25
Abstract
No abstract record available.
Inventors
- 👤 Pampus Gottfried
- 👤 Schon Nikolaus
- 👤 Witte Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:06
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)
GB776326A
Cited
US3118864A
Cited
US3072630A
Cited
US3101328A
Cited
US2944048A
Cited
US3027360A
Cited
FR1256231A
Cited
BE591994A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |