US3390195A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oligomericzation process
Assignee: Columbian Carbon Co
•
Filing: 1966-10-05
•
Granted: 1968-06-25
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Expires: 1986-10-05
Abstract
No abstract record available.
Inventors
- 👤 Iii Sterling F Chappell
- 👤 Jerome R Olechowski
- 👤 Arthur A Arseneaux
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:08
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/42; B; B01; B01J; B01J31/00; B01J31/02; B01J31/12; B01J31/122; B01J31/14; B01J31/143; B01J31/16; B01J31/22; B01J31/2204; B01J31/2208; B01J31/2226; B01J31/223; B01J31/2234; B01J31/2243; B01J31/2282; B01J31/2291; B01J37/00; B01J37/16; C07C2/04; B01J2231/00; B01J2231/20; B01J2531/00; B01J2531/80; B01J2531/84; B01J2531/847; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/14; C07C2531/16; C07C2531/22; C07C2601/00; C07C2601/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
AN OLIGOMERIZATION PROCESS WHICH COMPRISES CONTACTING UNDER SUBSTANTIALLY ANHYDROUS CONDITIONS A MONOMERIC FEED COMPRISING THE ALIPHATIC CONJUGATED DIOLEFIN, BUTADIENE, WITH A CATALYST COMPOSITION PRODUCED BY ADMIXING UNDER SUBSTANTIALLY ANHYDROUS CONDITIONS A NICEL COMPOUND SELECTED FROM THE GROUP CONSISTING OF NICKEL (II) AND NICKEL (III) COMPOUNDS; A REDUCING AGENT CAPABLE OF REDUCING THE VALENCE OF NICKEL TO BELOW 2, CAROBN MONOXIDE AND A MOLECULAR ORGANIC LEWIS BASE.
Claim 2
Dependent Claim
66 words
AN OLIGOMERIZATION PROCESS WHICH COMPRISES CONTACTING UNDER SUBSTANTIALLY ANHYDROUS CONDITIONS A MONOMERIC FEED COMPRISING THE ALIPHATIC CONJUGATED DIOLEFIN, BUTADIENE, WITH A CATALYST COMPOSITION PRODUCED BY ADMIXING UNDER SUBSTANTIALLY ANHYDROUS CONDITIONS A NICEL COMPOUND SELECTED FROM THE GROUP CONSISTING OF NICKEL (II) AND NICKEL (III) COMPOUNDS; A REDUCING AGENT CAPABLE OF REDUCING THE VALENCE OF NICKEL TO BELOW 2, CAROBN MONOXIDE AND A MOLECULAR ORGANIC LEWIS BASE.
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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) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |