US3655798A
Expired / Lapsed
US
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Catalytic isomerization process
Assignee: Chevron USA Inc
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Filing: 1970-03-19
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Granted: 1972-04-11
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Expires: 1990-03-19
Abstract
Abstract A CATALYTIC ISOMERIZATION PROCESS WHICH COMPRISES CONTACTING A HYDROCARBON FEEDSTOCK AT CATALYTIC ISOMERIZATION CONDITIONS WITH A CATALYST COMPRISING A SYNTHETIC INTERSTRATIFIED SMECTITE-ILLITE CLAY-TYPE ALUMINOSILICATE COMPONENT AND AT LEAST ONE ADDITIONAL COMPONENT COMPRISING A METAL.
Inventors
- 👤 Sigmund M Csicsery
- 👤 Bernard F Mulaskey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:24
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2767; C07C5/277; C07C5/2791; B; B01; B01J; B01J21/00; B01J21/16; B01J29/00; B01J29/04; B01J29/049; C07C5/2206; C07C5/226; C07C5/32; C07C5/373; C07C5/387; B01J2229/00; B01J2229/30; B01J2229/42; C07C2521/00; C07C2521/06; C07C2521/16; C07C2523/00; C07C2523/02; C07C2523/10; C07C2523/12; C07C2523/14; C07C2523/16; C07C2523/20; C07C2523/22; C07C2523/24; C07C2523/26; C07C2523/28; C07C2523/30; C07C2523/38; C07C2523/40; C07C2523/48; C07C2523/50; C07C2523/70; C07C2523/72; C07C2523/74; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52; Y10; Y10S; Y10S208/00; Y10S208/02
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-11 | 1975-10-11 | 1976-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-11 | 1979-10-11 | 1980-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-11 | 1983-10-11 | 1984-04-11 | $7700.00 | Window Closed / Lapsed |