US2898360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of dicyclopentadienyl iron
Assignee: Phillips Petroleum Co
•
Filing: 1954-05-17
•
Granted: 1959-08-04
•
Expires: 1974-05-17
Abstract
No abstract record available.
Inventors
- 👤 Hogan John Paul
- 👤 Lloyd E Gardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:04
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/30; C10L1/305; C07; C07F; C07F17/00; C07F17/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A PROCESS FOR THE PRODUCING OF DICYCLOPENTADIENYL IRON WHICH COMPRISES PASSING CYCLOPENTADIENE INTO A REACTION ZONE IN A GASEOUS STREAM COMPRISING ABOUT 13.2 MOL PERCENT HYDROGEN AND HAVING A PARTIAL PRESSURE OF CYCLOPENTADIENE IN THE RANGE 2 TO 50 P.S.I.A.; CONTAINING SAID CYCLOPENTADIENE WITH A REDUCED ALKALIZED IRON OXIDECHROMIUM OXIDE REACTANT MATERIAL AT A TEMPERATURE BETWEEN ABOUT 550* F. AND 700* F.; AND REMOVING FROM SAID REACTION ZONE SOLID MATERIAL CONTAINING DICYCLOPENTADIENYL IRON.
Claim 2
Dependent Claim
73 words
A PROCESS FOR THE PRODUCING OF DICYCLOPENTADIENYL IRON WHICH COMPRISES PASSING CYCLOPENTADIENE INTO A REACTION ZONE IN A GASEOUS STREAM COMPRISING ABOUT 13.2 MOL PERCENT HYDROGEN AND HAVING A PARTIAL PRESSURE OF CYCLOPENTADIENE IN THE RANGE 2 TO 50 P.S.I.A.; CONTAINING SAID CYCLOPENTADIENE WITH A REDUCED ALKALIZED IRON OXIDECHROMIUM OXIDE REACTANT MATERIAL AT A TEMPERATURE BETWEEN ABOUT 550* F. AND 700* F.; AND REMOVING FROM SAID REACTION ZONE SOLID MATERIAL CONTAINING DICYCLOPENTADIENYL IRON.
References Cited (Backward Citations)
US2769828A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-03 | 1963-02-02 | 1963-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-03 | 1967-02-02 | 1967-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-03 | 1971-02-02 | 1971-08-04 | $7700.00 | Window Closed / Lapsed |