US2719077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of iron carbonyl
Assignee: BASF SE
•
Filing: 1952-02-06
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Granted: 1955-09-27
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Expires: 1972-02-06
Abstract
No abstract record available.
Inventors
- 👤 Schlecht Leo
- 👤 Schlecht Helmut
- 👤 Staeger Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:53
CPC Classifications
C; C01; C01G; C01G49/00; C01G49/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
IN A PROCESS FOR THE PRODUCTION OF IRON CARBONYL THE STEPS OF CASTING A METAL CONTAINING IRON AND A MINOR AMOUNT OF SULFUR IN A LAYER OF THICKNESS NOT GREATER THAN ABOUT 4 CENTIMETERS, RAPIDLY COOLING THE CAST MELT TO ABOUT ROOM TEMPERATURE BY SPRAYING IT WITH WATER, BREAKING THE RESULRING CASTING INTO SMALL PARTICLES, AND REACTING THE PARTICLES THUS FORMED WITH CARBON MONOXIDE.
Claim 2
Dependent Claim
64 words
IN A PROCESS FOR THE PRODUCTION OF IRON CARBONYL THE STEPS OF CASTING A METAL CONTAINING IRON AND A MINOR AMOUNT OF SULFUR IN A LAYER OF THICKNESS NOT GREATER THAN ABOUT 4 CENTIMETERS, RAPIDLY COOLING THE CAST MELT TO ABOUT ROOM TEMPERATURE BY SPRAYING IT WITH WATER, BREAKING THE RESULRING CASTING INTO SMALL PARTICLES, AND REACTING THE PARTICLES THUS FORMED WITH CARBON MONOXIDE.
References Cited (Backward Citations)
GB323021A
Cited
GB324382A
Cited
US2086881A
Cited
GB438893A
Cited
US2248693A
Cited
US2281460A
Cited
US2197660A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-26 | 1959-03-28 | 1959-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-26 | 1963-03-28 | 1963-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-26 | 1967-03-28 | 1967-09-27 | $7700.00 | Window Closed / Lapsed |