US2855292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of refining molten metal with oxygen containing gas
Assignee: Individual
•
Filing: 1953-12-28
•
Granted: 1958-10-07
•
Expires: 1973-12-28
Abstract
No abstract record available.
Inventors
- 👤 William A Vogt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:09
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/28; C21C5/38; Y; Y10; Y10S; Y10S261/00; Y10S261/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
IN A MMETHOD OF REFINING MOLTEN METAL BY BLOWING WITH AN OXYGEN-CONTAINING GAS WHEREIN THE REFINING REACTIONS DEVELOP CARBON MONOXIDE-CONTAINING GASES HAVING A TEMPERATURE OF AT LEAST ABOUT 3000*F., AND A METAL OXIDE-CONTAINING DUST IS SUSPENDED IN SAID GASES ISSUING FROM THE REFINING ZONE, SAID DUST AT THE EXISTING TEMPERATURES BEING REACTIVE WITH THE CARBON MONOXIDE, THE METHOD OF PRESERVING THE FUEL VALUE OF SAID GASES AND PREVENTING SAID REACTION, WHICH COMPRISES MAINTAINING THE DUST-CONTAINING GASES ISSUING FROM SAID REFINING ZONE OUT OF CONTACT WITH THE ATMOSPHERE TO PREVENT BURNING OF
Claim 2
Dependent Claim
91 words
IN A MMETHOD OF REFINING MOLTEN METAL BY BLOWING WITH AN OXYGEN-CONTAINING GAS WHEREIN THE REFINING REACTIONS DEVELOP CARBON MONOXIDE-CONTAINING GASES HAVING A TEMPERATURE OF AT LEAST ABOUT 3000*F., AND A METAL OXIDE-CONTAINING DUST IS SUSPENDED IN SAID GASES ISSUING FROM THE REFINING ZONE, SAID DUST AT THE EXISTING TEMPERATURES BEING REACTIVE WITH THE CARBON MONOXIDE, THE METHOD OF PRESERVING THE FUEL VALUE OF SAID GASES AND PREVENTING SAID REACTION, WHICH COMPRISES MAINTAINING THE DUST-CONTAINING GASES ISSUING FROM SAID REFINING ZONE OUT OF CONTACT WITH THE ATMOSPHERE TO PREVENT BURNING OF
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-06 | 1962-04-07 | 1962-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-06 | 1966-04-07 | 1966-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-06 | 1970-04-07 | 1970-10-07 | $7700.00 | Window Closed / Lapsed |