Patent US3067189A successfully refreshed from Google Patents.
US3067189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diene polymerization catalyst
Assignee: Shell USA Inc
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Filing: 1959-12-24
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Granted: 1962-12-04
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Expires: 1979-12-24
Abstract
No abstract record available.
Inventors
- 👤 Jaroslav G Balas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:18
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
THE COMPOSITION COMPRISING THE SOLUBLE REACTION PRODUCT OF COBALTOUS CHLORIDE, ALUMINUM CHLORIDE AND LITHIUM BOROHYDRIDE IN A MOLAR RATIO OF 1:2-5:5-100, PREPARED IN THE PRESENCE OF A HYDROCARBON DILUENT, THE SOLUBLE REACTION PRODUCT BEING ESSENTIALLY FREE OF SOLIDS, THE ALUMINUM CHLORIDE AND CABALTOUS CHLORIDE EACH BEING DISSOLVED IN THE HYDROCARBON SOLVENT IN AN AMOUNT RANGINH FROM 2-50,000 P.P.M.
Claim 2
Dependent Claim
58 words
THE COMPOSITION COMPRISING THE SOLUBLE REACTION PRODUCT OF COBALTOUS CHLORIDE, ALUMINUM CHLORIDE AND LITHIUM BOROHYDRIDE IN A MOLAR RATIO OF 1:2-5:5-100, PREPARED IN THE PRESENCE OF A HYDROCARBON DILUENT, THE SOLUBLE REACTION PRODUCT BEING ESSENTIALLY FREE OF SOLIDS, THE ALUMINUM CHLORIDE AND CABALTOUS CHLORIDE EACH BEING DISSOLVED IN THE HYDROCARBON SOLVENT IN AN AMOUNT RANGINH FROM 2-50,000 P.P.M.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-03 | 1966-06-04 | 1966-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-03 | 1970-06-04 | 1970-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-03 | 1974-06-04 | 1974-12-04 | $7700.00 | Window Closed / Lapsed |