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Patent US3743684A successfully refreshed from Google Patents.
US3743684A
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Catalyst,catalyst preparation method,and process for catalytic hydrotreating unsaturated hydrocarbons
Assignee: Phillips Petroleum Co
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Filing: 1971-01-21
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Granted: 1973-07-03
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Expires: 1991-01-21
Abstract
Abstract A METHOD FOR HYDROTREATING UNSATURATED HYDROCARBON FEEDSTREAMS CONTAINING MONOOLEFINS, DIOLEFINS, OR ACETYLENES BY CONTACTING THE FEEDSTREAM WITH AN IRON-CONTAINING CATALYST; THE IRON-CONTAINING HYDROTREATING CATALYST; AND A METHOD FOR PREPARING THE AFOREMENTIONED HYDROTREATING CATALYST.
Inventors
- 👤 M Johnson
- 👤 D Tabler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:53
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/02; B01J31/12; B01J31/14; B01J31/143; B01J31/26; B01J31/28; B01J31/30; B01J2231/00; B01J2231/60; B01J2231/64; B01J2231/641; B01J2231/645
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |