US3297586A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vanadium complexes and polymerization catalyst prepared therefrom
Assignee: Shell USA Inc
•
Filing: 1964-12-29
•
Granted: 1967-01-10
•
Expires: 1984-12-29
Abstract
No abstract record available.
Inventors
- 👤 Edward W Duck
- 👤 Philip M Duinker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:44
CPC Classifications
C; C08; C08F; C08F10/00; C08F136/00; C08F136/02; C08F136/04; C08F136/06
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
66 words
A HYDROCARBON-SOLUBLE, WATER-INSOLUBLE COMPLEX REACTION PRODUCT RESULTING FROM REACTING IN AQUEOUS MEDIUM A VANADYL SALT AND A WATER-SOLUBLE SALT OF AN AROMATIC CARBOYXLIC ACID SUBSTITUTED ON THE SAME AROMATIC RING WITH AT LEAST ONE CARBOYXL GROUP, AT LEAST ONE ALKYL GROUP OF FROM 1 TO 12 CARBON ATOMS, AND AT LEAST ONE GROUP -XH WHEREIN X IS SELECTED FROM THE GROUP CONSISTING OF SULFUR AND OXYGEN.
Claim 2
Dependent Claim
66 words
A HYDROCARBON-SOLUBLE, WATER-INSOLUBLE COMPLEX REACTION PRODUCT RESULTING FROM REACTING IN AQUEOUS MEDIUM A VANADYL SALT AND A WATER-SOLUBLE SALT OF AN AROMATIC CARBOYXLIC ACID SUBSTITUTED ON THE SAME AROMATIC RING WITH AT LEAST ONE CARBOYXL GROUP, AT LEAST ONE ALKYL GROUP OF FROM 1 TO 12 CARBON ATOMS, AND AT LEAST ONE GROUP -XH WHEREIN X IS SELECTED FROM THE GROUP CONSISTING OF SULFUR AND OXYGEN.
Claim 3
Dependent Claim
32 words
A POLYMERIZATION CATALYST COMPRISING (A) AN ORGANO-METALLIC REDUCING COMPOUND OF A METAL FROM GROUPS 1, 2, 3 AND 4B OF THE PERIODIC TABLE, AND (B) A VANADIUM COMPLEX ACCORDING TO CLAIM 1.
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) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |