Patent US3214303A successfully refreshed from Google Patents.
US3214303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of retaining a dispersed second phase until after the texture developing anneal
Assignee: General Electric Co
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Filing: 1965-03-24
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Granted: 1965-10-26
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Expires: 1985-03-24
Abstract
No abstract record available.
Inventors
- 👤 Howard C Fiedler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:16
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A PROCESS FOR PRODUCING A POLYCRYSTALLINE SHEET-LIKE BODY HAVING A MAJORITY OF THE CONSTITUENT GRAINS ORIENTED IN THE (110) (001) CRYSTALLINE DIRECTION COMPRISING PRODUCING A STARTING BODY CONSISTING ESSENTIALLY OF FROM ABOUT 1.5 TO 4.0 WEIGHT PERCENT SILICON, BALANCE SUBSTANTIALLY ALL IRON AND INCIDENTAL IMPURITIES, AND INCLUDING A DISPERSED SECOND PHASE SELECTED FROM THE GROUP CONSISTING OF NITRIDES AND CARBIDES OF VANADIUM AND MANGANESE SULFIDE, REDUCING THE THICKNESS OF THE STARTING BODY IN A PLURALITY OF HOT AND COLD ROLLING STAGES TO A FINAL THICKNESS OF FROM ABOUT 2 TO 15 MILS WHEN THE SECOND PHASE IS ONE OF SAID NITRIDES AND CARBIDES AND TO A FINAL THICKNESS OF FROM ABOUT 2 TO 10 MILS WHEN THE SECOND PHASE IS MANGANESE SULFIDE, AND HEATING THE BODY IN AN ATMOSPHERE WHICH WILL NOT REDUCE THE DISPERSED SECOND PHASE AT THE HEATING TEMPERATURE, SAID HEATING EFFECTING SECONDARY RECRYSTALLIZATION OF A MAJORITY OF THE GRAINS INTO THE (110) (001) CRYSTALLINE DIRECTION.
Claim 2
Dependent Claim
158 words
A PROCESS FOR PRODUCING A POLYCRYSTALLINE SHEET-LIKE BODY HAVING A MAJORITY OF THE CONSTITUENT GRAINS ORIENTED IN THE (110) (001) CRYSTALLINE DIRECTION COMPRISING PRODUCING A STARTING BODY CONSISTING ESSENTIALLY OF FROM ABOUT 1.5 TO 4.0 WEIGHT PERCENT SILICON, BALANCE SUBSTANTIALLY ALL IRON AND INCIDENTAL IMPURITIES, AND INCLUDING A DISPERSED SECOND PHASE SELECTED FROM THE GROUP CONSISTING OF NITRIDES AND CARBIDES OF VANADIUM AND MANGANESE SULFIDE, REDUCING THE THICKNESS OF THE STARTING BODY IN A PLURALITY OF HOT AND COLD ROLLING STAGES TO A FINAL THICKNESS OF FROM ABOUT 2 TO 15 MILS WHEN THE SECOND PHASE IS ONE OF SAID NITRIDES AND CARBIDES AND TO A FINAL THICKNESS OF FROM ABOUT 2 TO 10 MILS WHEN THE SECOND PHASE IS MANGANESE SULFIDE, AND HEATING THE BODY IN AN ATMOSPHERE WHICH WILL NOT REDUCE THE DISPERSED SECOND PHASE AT THE HEATING TEMPERATURE, SAID HEATING EFFECTING SECONDARY RECRYSTALLIZATION OF A MAJORITY OF THE GRAINS INTO THE (110) (001) CRYSTALLINE DIRECTION.
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) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |