Patent US2715064A successfully refreshed from Google Patents.
US2715064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing silicon steel
Assignee: Individual
•
Filing: 1954-09-01
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Granted: 1955-08-09
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Expires: 1974-09-01
Abstract
No abstract record available.
Inventors
- 👤 Lawrence M Burns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:33
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
METHOD OF PROUCING SILICON STEEL CONTAINING OVER 3% SILICON COMPRISING FORMING A METL OF LOW MATALLOID, LOW-CARBON STEEL, TAPPING SAID STEEL INT A LADLE, ADDING SUFFICIENT FERROSILICON TO BRING THE SILCON CONTENT TO ABOVE 3%, ADDING SUFFICIENT COLD SILICON STEEL SCRAP TO REDUCE THE TEMPERATURE OF THE STEEL IN THE LADLE TO A TEMPERATURE SUITABLE FOR TEEMING AND THEN TEEMING SAID STEEL INTO INGOT MOLDS.
Claim 2
Dependent Claim
65 words
METHOD OF PROUCING SILICON STEEL CONTAINING OVER 3% SILICON COMPRISING FORMING A METL OF LOW MATALLOID, LOW-CARBON STEEL, TAPPING SAID STEEL INT A LADLE, ADDING SUFFICIENT FERROSILICON TO BRING THE SILCON CONTENT TO ABOVE 3%, ADDING SUFFICIENT COLD SILICON STEEL SCRAP TO REDUCE THE TEMPERATURE OF THE STEEL IN THE LADLE TO A TEMPERATURE SUITABLE FOR TEEMING AND THEN TEEMING SAID STEEL INTO INGOT MOLDS.
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) | 1958-08-08 | 1959-02-07 | 1959-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-08 | 1963-02-07 | 1963-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-08 | 1967-02-07 | 1967-08-09 | $7700.00 | Window Closed / Lapsed |