Patent US2811437A successfully refreshed from Google Patents.
US2811437A
Expired / Lapsed
US
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Methods for conditioning molten metal
Assignee: Individual
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Filing: 1956-05-14
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Granted: 1957-10-29
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Expires: 1976-05-14
Abstract
No abstract record available.
Inventors
- 👤 Fessler Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:45
CPC Classifications
B; B22; B22D; B22D43/00; F; F27; F27B; F27B14/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
A METHOD FOR CONDITIONING MOLTEN METAL COMPRISING DEPOSITING MOLTEN METAL IN A VESSEL HAVING PORTIONS OF ITS OUTER SURFACE EXTENDING IN A GENERALLY OUTWARD AND DOWNWARD DIRECTION, ROTATING THE VESSEL IN A CHAMBER HAVING PORTIONS OF ITS INNER SURFACE SIMILARLY EXTENDING IN A GEN-
Claim 2
Independent Claim
44 words
A METHOD FOR CONDITIONING MOLTEN METAL COMPRISING DEPOSITING MOLTEN METAL IN A VESSEL HAVING PORTIONS OF ITS OUTER SURFACE EXTENDING IN A GENERALLY OUTWARD AND DOWNWARD DIRECTION, ROTATING THE VESSEL IN A CHAMBER HAVING PORTIONS OF ITS INNER SURFACE SIMILARLY EXTENDING IN A GEN-
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) | 1960-10-28 | 1961-04-29 | 1961-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-28 | 1965-04-29 | 1965-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-28 | 1969-04-29 | 1969-10-29 | $7700.00 | Window Closed / Lapsed |