US3729524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conversion of olefins
Assignee: Phillips Petroleum Co
•
Filing: 1971-11-23
•
Granted: 1973-04-24
•
Expires: 1991-11-23
Abstract
Abstract NEOHEXENE IS PRODUCED BY CONTAINING ISOBUTENE AND ETHYLENE WITH A CATALYST COMPRISING A MIXTURE OF TUNGSTEN OXIDE ON SILICA AND MAGNESIUM OXIDE. D R A W I N G
Inventors
- 👤 R Reusser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:03
CPC Classifications
C; C07; C07C; C07C11/00; C07C11/02; C07C11/107; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/10; C07C6/00; C07C6/02; C07C6/04; C07C2521/00; C07C2521/06; C07C2521/08; C07C2521/10; C07C2523/00; C07C2523/16; C07C2523/24; C07C2523/30; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/905
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) | 1976-04-23 | 1976-10-23 | 1977-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-23 | 1980-10-23 | 1981-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-23 | 1984-10-23 | 1985-04-24 | $7700.00 | Window Closed / Lapsed |