US2988562A
Expired / Lapsed
US
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Process for preparing a monoacyl dicyclopentadienyl iron
Assignee: EIDP Inc
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Filing: 1953-04-29
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Granted: 1961-06-13
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Expires: 1973-04-29
Abstract
No abstract record available.
Inventors
- 👤 Weinmayr Viktor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:34
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
76 words
THE PROCESS FOR PREPARING A MONOACYL DICYCLOPENTADIENYLIRON IN WHICH THE ACYL RADICAL HAS THE FORMULA R-CO- WHEREIN R REPRESENTS AN ALKYL RADICAL OF UP TO 10 CARBON ATOMS, WHICH COMPRISES REACTING DICYCLOPENTADIENYLIRON WITH AN ALKYL ACYLATING AGENT IN WHICH THE ALKYL RADICAL CONTAINS UP TO 10 CARBON ATOMS AT A TEMPERATURE BETWEEN 20* C. AND 120 C. IN THE PRESENCE OF AN INORGANIC NON-OXIDIZING ACID WHICH IS AT LEAST AS STRONG AN ACID AS HYDROGEN FLUORIDE.
Claim 2
Dependent Claim
76 words
THE PROCESS FOR PREPARING A MONOACYL DICYCLOPENTADIENYLIRON IN WHICH THE ACYL RADICAL HAS THE FORMULA R-CO- WHEREIN R REPRESENTS AN ALKYL RADICAL OF UP TO 10 CARBON ATOMS, WHICH COMPRISES REACTING DICYCLOPENTADIENYLIRON WITH AN ALKYL ACYLATING AGENT IN WHICH THE ALKYL RADICAL CONTAINS UP TO 10 CARBON ATOMS AT A TEMPERATURE BETWEEN 20* C. AND 120 C. IN THE PRESENCE OF AN INORGANIC NON-OXIDIZING ACID WHICH IS AT LEAST AS STRONG AN ACID AS HYDROGEN FLUORIDE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-12 | 1964-12-12 | 1965-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-12 | 1968-12-12 | 1969-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-12 | 1972-12-12 | 1973-06-13 | $7700.00 | Window Closed / Lapsed |