Patent US3480659A successfully refreshed from Google Patents.
US3480659A
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Hydrogenation process
Assignee: Shell USA Inc
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Filing: 1965-07-19
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Granted: 1969-11-25
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Expires: 1985-07-19
Abstract
No abstract record available.
Inventors
- 👤 Kenneth C Dewhirst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:56
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/16; B01J31/24; B01J31/2404; B01J31/20; B01J31/2409; C; C07; C07C; C07C255/00; C07C45/00; C07C45/61; C07C45/62; C07C5/00; C07C5/02; C07C5/03; B01J2231/00; B01J2231/60; B01J2231/64; B01J2231/641; B01J2231/645; B01J2531/00; B01J2531/80; B01J2531/82; B01J2531/822; C07C2531/00; C07C2531/16; C07C2531/24; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3133943A
Cited
US2999107A
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US3110747A
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US3130237A
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US3290343A
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US3324018A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |