Patent US2606736A successfully refreshed from Google Patents.
Patent US2784073A successfully refreshed from Google Patents.
US2784073A
Expired / Lapsed
US
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Process for the prevention of separation and dust formation in magnetizable powders
Assignee: Easton Metal Powder Co Inc
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Filing: 1954-11-30
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Granted: 1957-03-05
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Expires: 1974-11-30
Abstract
No abstract record available.
Inventors
- 👤 Michalke Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:33
CPC Classifications
B; B22; B22F; B22F9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
IN A METHOD FOR THE PRODUCTION OF POWDERED IRON COMPRISING ATOMIZING MOLTEN IRON IN THE PRESENCE OF AN OXIDIZING AGENT TO FORM RAW IRON PARTICLES HAVING A SHELL OF MAGNETIC IRON OXIDE AND A CORE CONTAINING IRON AND CARBON, AND SUBSEQUENTLY REHEATING THE RAW PARTICLES TO CONVERT THEM TO ELEMENTAL IRON, THE COMBINATION THEREWITH OF MAGNETIZING SAID RAW PARTICLES PRIOR TO THE REHEATING TO PREVENT DUST FORMATION DURING THE REHEATING.
Claim 2
Dependent Claim
70 words
IN A METHOD FOR THE PRODUCTION OF POWDERED IRON COMPRISING ATOMIZING MOLTEN IRON IN THE PRESENCE OF AN OXIDIZING AGENT TO FORM RAW IRON PARTICLES HAVING A SHELL OF MAGNETIC IRON OXIDE AND A CORE CONTAINING IRON AND CARBON, AND SUBSEQUENTLY REHEATING THE RAW PARTICLES TO CONVERT THEM TO ELEMENTAL IRON, THE COMBINATION THEREWITH OF MAGNETIZING SAID RAW PARTICLES PRIOR TO THE REHEATING TO PREVENT DUST FORMATION DURING THE REHEATING.
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) | 1960-03-04 | 1960-09-03 | 1961-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-04 | 1964-09-03 | 1965-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-04 | 1968-09-03 | 1969-03-05 | $7700.00 | Window Closed / Lapsed |