US3082197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of conjugated diolefins in the presence of transition metal borohydrides
Assignee: Phillips Petroleum Co
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Filing: 1958-12-01
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Granted: 1963-03-19
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Expires: 1978-12-01
Abstract
No abstract record available.
Inventors
- 👤 Donald R Witt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:30
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
A PROCESS FOR THE POLYMERIZATION OF MONOMERIC MATERIAL COMPRISING CONJUGATED DIENES CONTAINING FROM 4 TO 8 CARBON ATOMS WHICH COMPRISES CONTACTINT THE DIENE WITH A CATALYST CONSISTING ESSENTIALLY OF A MATERIAL HAVING THE FORMULA
Claim 2
Dependent Claim
34 words
A PROCESS FOR THE POLYMERIZATION OF MONOMERIC MATERIAL COMPRISING CONJUGATED DIENES CONTAINING FROM 4 TO 8 CARBON ATOMS WHICH COMPRISES CONTACTINT THE DIENE WITH A CATALYST CONSISTING ESSENTIALLY OF A MATERIAL HAVING THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |