Patent US2213479A successfully refreshed from Google Patents.
US3102899A
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Preparation of transition metal organic phosphite complexes
Assignee: Shell USA Inc
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Filing: 1960-07-22
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Granted: 1963-09-03
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Expires: 1980-07-22
Abstract
No abstract record available.
Inventors
- 👤 Lawrence G Cannell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:06
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/30; C10L1/301; B; B01; B01J; B01J31/00; B01J31/16; B01J31/18; B01J31/1845; B01J31/185; B01J31/1895; B01J31/20; B01J31/24; B01J31/2404; B01J31/2409; B01J31/26; C07; C07C; C07C45/00; C07C45/49; C07C45/50; C07F; C07F15/00; C07F15/04; C07F15/045; C07F15/06; C07F15/065; C07F9/00; C07F9/02; C07F9/28; C07F9/50; C07F9/5045; B01J2231/00; B01J2231/30; B01J2231/32; B01J2231/321; B01J2531/00; B01J2531/80; B01J2531/84; B01J2531/845; B01J2531/847
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A PROCESS FOR PREPARING A COMPLEX BETWEEN A TRANSITION METAL HAVING AN ATOMIC NUMBER FROM 26 TO 28, INCLUSIVE, AND A TRIHYDROCARBON PHOSPHITE, WHEREIN THE HYDROCARBON GROUPS CONTAIN FROM 1-20 CARBON ATOMS, WHICH COMPRISES REACTING A SALT OF THE TRANSITION METAL IN LIQUID PHASE WITH AN ALKALI METAL DITHIONITE TO REDUCE THE VALENCE STATE OF THE TRANSITION METAL, AND REACTING IT WITH THE PHOSPHITE.
Claim 2
Dependent Claim
64 words
A PROCESS FOR PREPARING A COMPLEX BETWEEN A TRANSITION METAL HAVING AN ATOMIC NUMBER FROM 26 TO 28, INCLUSIVE, AND A TRIHYDROCARBON PHOSPHITE, WHEREIN THE HYDROCARBON GROUPS CONTAIN FROM 1-20 CARBON ATOMS, WHICH COMPRISES REACTING A SALT OF THE TRANSITION METAL IN LIQUID PHASE WITH AN ALKALI METAL DITHIONITE TO REDUCE THE VALENCE STATE OF THE TRANSITION METAL, AND REACTING IT WITH THE PHOSPHITE.
References Cited (Backward Citations)
US2767082A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-02 | 1967-03-04 | 1967-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-02 | 1971-03-04 | 1971-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-02 | 1975-03-04 | 1975-09-03 | $7700.00 | Window Closed / Lapsed |