US3422001A
Expired / Lapsed
US
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Process for the hydrogenation of unsaturated hydrocarbons
Assignee: Shell USA Inc
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Filing: 1966-02-03
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Granted: 1969-01-14
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Expires: 1986-02-03
Abstract
No abstract record available.
Inventors
- 👤 Herman W Kouwenhoven
- 👤 Pieter C Aben
- 👤 Karel Van Der Wal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:11
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/02; C07C5/10; B; B01; B01J; B01J27/00; B01J27/02; B01J27/04; B01J27/047; B01J27/049; C10; C10G; C10G45/00; C10G45/44; C10G45/46; C10G45/48; C10G45/50; C07C2521/00; C07C2521/02; C07C2521/04; C07C2527/00; C07C2527/02; C07C2527/04
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) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |