Patent US2822247A successfully refreshed from Google Patents.
US2822247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the synthesis of manganese carbonyl
Assignee: Ethyl Corp
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Filing: 1956-06-21
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Granted: 1958-02-04
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Expires: 1976-06-21
Abstract
No abstract record available.
Inventors
- 👤 Hnizda Vincent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:20
CPC Classifications
C; C01; C01G; C01G45/00; C01G45/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A PROCESS FOR THE SUNTHESIS OF MANGANESE CARBONYL WHICH COMPRISES REACTING MANGANOUS CHLORIDE WITH AN ARYL MAGNESIUM HALIDE AND CARBON MONOXIDE WHEREIN THE CARBON MONOXIDE PRESSURE IS AT LEAST ABOUT 393 P. S. I. G. AND THE TEMPERATURE RANGES FROM ABOUT -70*C. TO ABOUT 200*C.
Claim 2
Dependent Claim
45 words
A PROCESS FOR THE SUNTHESIS OF MANGANESE CARBONYL WHICH COMPRISES REACTING MANGANOUS CHLORIDE WITH AN ARYL MAGNESIUM HALIDE AND CARBON MONOXIDE WHEREIN THE CARBON MONOXIDE PRESSURE IS AT LEAST ABOUT 393 P. S. I. G. AND THE TEMPERATURE RANGES FROM ABOUT -70*C. TO ABOUT 200*C.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-03 | 1961-08-05 | 1962-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-03 | 1965-08-05 | 1966-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-03 | 1969-08-05 | 1970-02-04 | $7700.00 | Window Closed / Lapsed |