US2849470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxy-dicyclopentadienyl compounds of transition metals of groups vi to viii and theirpreparation
Assignee: EIDP Inc
•
Filing: 1954-08-06
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Granted: 1958-08-26
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Expires: 1974-08-06
Abstract
No abstract record available.
Inventors
- 👤 Benson Richard Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:51
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/26; G03C5/29; G03C5/30; C; C07; C07F; C07F17/00; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/30; C10L1/305
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
THE COMPOUND OF IRON WHEREIN THE IRON ATOM IS DIRECTLY BONDED TO TWO CYCLOPENTADIENYL NUCLEI, AT LEAST ONE OF WHICH NUCLEI HAS DIRECTLY ATTACHED TO A NUCLEAR CARBON THEREOF A CARBACYLOXY RADICAL, FREE FROM ALIPHATIC UNSATURATION AND OF NOT MORE THAN SEVEN CARBON ATOMS, EACH OF SAID CYCLOPENTADIENYL NUCLEI HAVING A TOTAL OF NOT MORE THAN TWO CARBACYLOXY RADICALS SEPARATELY ATTACHED TO DIFFERENT NUCLEAR CARBONS THEREOF, THE REMAINING VALENCES OF THE NUCLEAR CARBONS OF EACH CYCLOPENTADIENYL NUCLEI BEING SATISFIED, OTHER THAN BY HYDROGEN, SOLELY AND SEPARATELY WITH A TOTAL OF NOT MORE THAN TWO MONOVALENT HYDROCARBON RADICALS PER EACH OF SAID NUCLEI, SAID HYDROCARBON RADICALS BEING FREE FROM ALIPHATIC UNSATURATION, AND EACH OF NOT MORE THAN SEVEN CARBON ATOMS.
Claim 2
Dependent Claim
119 words
THE COMPOUND OF IRON WHEREIN THE IRON ATOM IS DIRECTLY BONDED TO TWO CYCLOPENTADIENYL NUCLEI, AT LEAST ONE OF WHICH NUCLEI HAS DIRECTLY ATTACHED TO A NUCLEAR CARBON THEREOF A CARBACYLOXY RADICAL, FREE FROM ALIPHATIC UNSATURATION AND OF NOT MORE THAN SEVEN CARBON ATOMS, EACH OF SAID CYCLOPENTADIENYL NUCLEI HAVING A TOTAL OF NOT MORE THAN TWO CARBACYLOXY RADICALS SEPARATELY ATTACHED TO DIFFERENT NUCLEAR CARBONS THEREOF, THE REMAINING VALENCES OF THE NUCLEAR CARBONS OF EACH CYCLOPENTADIENYL NUCLEI BEING SATISFIED, OTHER THAN BY HYDROGEN, SOLELY AND SEPARATELY WITH A TOTAL OF NOT MORE THAN TWO MONOVALENT HYDROCARBON RADICALS PER EACH OF SAID NUCLEI, SAID HYDROCARBON RADICALS BEING FREE FROM ALIPHATIC UNSATURATION, AND EACH OF NOT MORE THAN SEVEN CARBON ATOMS.
References Cited (Backward Citations)
US2683157A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |