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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
•
Filing: 1965-03-24
•
Granted: 1965-10-26
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Expires: 1985-03-24
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Abstract

No abstract record available.

Inventors

  • 👤 Howard C Fiedler

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 14:59
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

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