US2952522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of manganese carbonyl
Assignee: Ethyl Corp
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Filing: 1958-12-29
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Granted: 1960-09-13
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Expires: 1978-12-29
Abstract
No abstract record available.
Inventors
- 👤 Harold E Podall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:47
CPC Classifications
C; C01; C01G; C01G45/00; C01G45/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
THE PROCESS FOR THE MANUFACTURE OF MANGANESE PENTACARBONYL DIMER WHICH COMPRISES REACTING A SALT OF MANGANESE, CARBON MONOXIDE AND A REDUCING METAL SELECTED FROM THE GROUP CONSISTING OF METALS OF GROUPS I-A, II AND III-A OF THE PERIODIC CHART OF THE ELEMENTS IN CONTACT WITH CATALYTIC QUANTITIES OF AN ORGANOMETALLIC COMPOUND OF SAID REDUCING METALS HAVING ORGANO GROUPS SELECTED FROM THE GROUP CONSISTING OF ALKYL AND ARYL GROUPS AT A TEMPERATURE OF 0-200*C. AND AT A CARBON MONOXIDE PRESSURE ABOVE ATMOSPHERIC AND UP TO ABOUT 5,000 P.S.I.G., SAID ORGANOMETALLIC COMPOUND HAVING A METAL ATOM BONDED DIRECTLY TO A CARBON OF SAID ORGANO GROUPS.
Claim 2
Dependent Claim
103 words
THE PROCESS FOR THE MANUFACTURE OF MANGANESE PENTACARBONYL DIMER WHICH COMPRISES REACTING A SALT OF MANGANESE, CARBON MONOXIDE AND A REDUCING METAL SELECTED FROM THE GROUP CONSISTING OF METALS OF GROUPS I-A, II AND III-A OF THE PERIODIC CHART OF THE ELEMENTS IN CONTACT WITH CATALYTIC QUANTITIES OF AN ORGANOMETALLIC COMPOUND OF SAID REDUCING METALS HAVING ORGANO GROUPS SELECTED FROM THE GROUP CONSISTING OF ALKYL AND ARYL GROUPS AT A TEMPERATURE OF 0-200*C. AND AT A CARBON MONOXIDE PRESSURE ABOVE ATMOSPHERIC AND UP TO ABOUT 5,000 P.S.I.G., SAID ORGANOMETALLIC COMPOUND HAVING A METAL ATOM BONDED DIRECTLY TO A CARBON OF SAID ORGANO GROUPS.
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) | 1963-09-13 | 1964-03-14 | 1964-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-13 | 1968-03-14 | 1968-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-13 | 1972-03-14 | 1972-09-13 | $7700.00 | Window Closed / Lapsed |