Patent DE3138363A1 successfully refreshed from Google Patents.
US2898359A
Expired / Lapsed
US
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Iron carbonyl-cyclopentadiene complexes
Assignee: Shell Development Co
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Filing: 1954-01-04
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Granted: 1959-08-04
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Expires: 1974-01-04
Abstract
No abstract record available.
Inventors
- 👤 Leedham Kenneth
- 👤 Garner Philip James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:40
CPC Classifications
C; C07; C07F; C07F15/00; C07F15/02; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/30; C10L1/305
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
69 words
A PROCESS FOR PREPARATING AN ORGANO-IRON COMPOUND COMPOSED ONLY OF THE ELEMENTS IRON, CARBON, HYDROGEN AND OXYGEN, SAID PROCESS COMPRISING HEATING TOGETHER AT A TEMPERATURE OF FROM ABOUT 100*C. TO ABOUT 200*C. A MIXTURE OF IRON PENTACARBONYL AND A CYCLODIENE OF THE GROUP CONSISTING OF CYCLOPENTADIENE AND HYDROCARBONSUBSTITUTED CYCLOPENTADIENES AND RECOVERING FROM THE RESULTING REACTION MIXTURE AN ORGANO-IRON COMPOUND COMPOSED ONLY OF THE ELEMENTS IRON, CARBON, HYDROGEN AND OXYGEN.
References Cited (Backward Citations)
US2409167A
Cited
US2810736A
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 |