US3028404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of cyclopentadienyl metal carbonyl compounds
Assignee: Ethyl Corp
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Filing: 1958-11-03
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Granted: 1962-04-03
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Expires: 1978-11-03
Abstract
No abstract record available.
Inventors
- 👤 Tillmon H Pearson
- 👤 John K Presswood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:44
CPC Classifications
C; C07; C07F; C07F17/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A PROCESS FOR THE MANUFACTURE OF CYCLOPENTADIENYL HYDROCARBON METAL CARBONYL COMPOUNDS OF METALS OF GROUPS V-B, VII-B AND THE ODD ATOMIC NUMBERED METALS OF GROUP VIII COMPRISING REACTING A METAL SALT OF A METAL OF GROUPS V-B, VII-B AND THE ODD ATOMIC NUMBERED METALS OF GROUP VIII, DIMERIC CYCLOPENTADIENTLY HYDROCARBON METAL CARBONYL OF METALS OF GROUP VI-B AND THE EVEN ATOMIC NUMBERED METALS OF GROUP VIII, CARBON MONOXIDE AND A METAL SELECTED FROM THE GROUP CONSISTING OF GROUPS I-A, II AND III-A OF THE PERIODIC TABLE, SAID REACTION BEING CONDUCTED AT A TEMPERATURE OF FROM -25 TO 300*C. AND AT A PRESSURE OF FROM ABOUT ONE ATMOSPHERE TO ABOUT 10,000 P.S.I.G., THE CONCENTRATION OF SID METAL SALT BEING FROM 0.1 TO ABOUT 100 MOLES PER MOLE OF SAID DIMERIC CYCLOPENTADIENTLY HYDROCARBON METAL CARBONYL.
Claim 2
Dependent Claim
133 words
A PROCESS FOR THE MANUFACTURE OF CYCLOPENTADIENYL HYDROCARBON METAL CARBONYL COMPOUNDS OF METALS OF GROUPS V-B, VII-B AND THE ODD ATOMIC NUMBERED METALS OF GROUP VIII COMPRISING REACTING A METAL SALT OF A METAL OF GROUPS V-B, VII-B AND THE ODD ATOMIC NUMBERED METALS OF GROUP VIII, DIMERIC CYCLOPENTADIENTLY HYDROCARBON METAL CARBONYL OF METALS OF GROUP VI-B AND THE EVEN ATOMIC NUMBERED METALS OF GROUP VIII, CARBON MONOXIDE AND A METAL SELECTED FROM THE GROUP CONSISTING OF GROUPS I-A, II AND III-A OF THE PERIODIC TABLE, SAID REACTION BEING CONDUCTED AT A TEMPERATURE OF FROM -25 TO 300*C. AND AT A PRESSURE OF FROM ABOUT ONE ATMOSPHERE TO ABOUT 10,000 P.S.I.G., THE CONCENTRATION OF SID METAL SALT BEING FROM 0.1 TO ABOUT 100 MOLES PER MOLE OF SAID DIMERIC CYCLOPENTADIENTLY HYDROCARBON METAL CARBONYL.
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) | 1965-04-02 | 1965-10-02 | 1966-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-02 | 1969-10-02 | 1970-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-02 | 1973-10-02 | 1974-04-03 | $7700.00 | Window Closed / Lapsed |