US3786112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Olefin disproportionation catalyst
Assignee: Phillips Petroleum Co
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Filing: 1971-08-30
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Granted: 1974-01-15
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Expires: 1991-08-30
Abstract
Abstract A CATALYST FOR THE OLEFIN DISPROPORTIONATION OF UNSATURATED HYDROCARBONS IS PROVIDED COMPRISING A PHYSICAL MIXTURE OF A SOLID DISPROPORTIONATION CATALYST AND A DOUBLE BOND ISOMERIZATION CATALYST WHEREIN THE DOUBLE BOND ISOMERIZATION CATALYST IS FURTHER TREATED WITH A BASE.
Inventors
- 👤 R Reusser
- 👤 S Turk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:43
CPC Classifications
C; C07; C07C; C07C6/00; C07C6/02; C07C6/04; B; B01; B01J; B01J23/00; B01J23/16; B01J23/24; B01J23/30; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
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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) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |