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Patent US3496204A successfully refreshed from Google Patents.
US3496204A
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Tertiary organophosphine-cobalt-carbonyl complexes
Assignee: Shell USA Inc
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Filing: 1968-09-09
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Granted: 1970-02-17
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Expires: 1988-09-09
Abstract
No abstract record available.
Inventors
- 👤 Rupert C Morris
- 👤 John L Van Winkle
- 👤 Ronald F Mason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:00
CPC Classifications
C; C07; C07F; C07F15/00; C07F15/06; C07F15/065; B; B01; B01J; B01J31/00; B01J31/16; B01J31/18; B01J31/1845; B01J31/1875; B01J31/188; B01J31/20; B01J31/24; B01J31/2404; B01J31/2419; B01J31/2423; C07C; C07C45/00; C07C45/49; C07C45/50; C07F9/00; C07F9/02; C07F9/547; C07F9/6564; C07F9/6568; C07F9/65683; B01J2231/00; B01J2231/30; B01J2231/32; B01J2231/321; B01J2531/00; B01J2531/02; B01J2531/0202; B01J2531/0205; B01J2531/80; B01J2531/84; B01J2531/845; C10; C10M; C10M2209/00; C10M2209/02; C10M2209/10; C10M2223/00; C10M2223/06; C10M2223/061
Claims Analysis
Total Claims: 0
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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) | 1973-02-16 | 1973-08-18 | 1974-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-16 | 1977-08-18 | 1978-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-16 | 1981-08-18 | 1982-02-17 | $7700.00 | Window Closed / Lapsed |