Patent US3598724A successfully refreshed from Google Patents.
US3598724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of propane and butanes
Assignee: Chevron USA Inc
•
Filing: 1969-09-15
•
Granted: 1971-08-10
•
Expires: 1989-09-15
Abstract
Abstract A HYDROCARBON FEED BOILING ABOVE 100* F. IS CONVERTED O HIGH YIELDS OF C3-C4 HYDROCARBONS BY CONTACT WITH A CATALYST COMPRISING MORDENITE, THOROUGHLY ADMIXED WITH AN AMORPHOUS POROUS INORGANIC OXIDE CONTAINING NICKEL, OR COMPOUNDS THEREOF, AND TIN, OR COMPOUNDS THEREOF , AT HYDROCRACKING CONDITIONS SUFFICIENTLY SEVERE TO CONVERT AT LEAST 30 PERCENT OF THE FEED TO PRODUCTS BOILING BELOW 100*F.
Inventors
- 👤 Bernard F Mulaskey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:26
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/18; B01J29/20; B01J29/24; B01J21/00; B01J21/16; B01J29/049; C; C10; C10G; C10G47/00; C10G47/02; C10G47/10; C10G47/12; C10G47/16; C10G47/20; B01J2229/00; B01J2229/30; B01J2229/42
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |