US3238134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing single-phase mixed crystals
Assignee: Siemens Schuckertwerke AG
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Filing: 1962-06-12
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Granted: 1966-03-01
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Expires: 1982-06-12
Abstract
No abstract record available.
Inventors
- 👤 Fleischmann Horst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:21
CPC Classifications
C; C01; C01B; C01B19/00; C01B19/007; C22; C22C; C22C1/00; C22C1/02; C22C28/00; C30; C30B; C30B13/00; H; H10; H10N; H10N10/00; H10N10/80; H10N10/85; H10N10/851; H10N10/852; C01P; C01P2004/00; C01P2004/30; C01P2006/00; C01P2006/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
THE METHOD OF PRODUCING A SINGLE-PHASE MIXED CRYSTAL OF WHICH AT LEAST ONE TERMINAL COMPOUND IS PERITECTIC, COMPRISING THE STEPS OF PREPARING A ROD-SHAPED STRUCTURE OF MIXED CRYSTAL MATERIAL CONTAINING THE LOWEST MELTING COMPONENT OF AT LEAST ONE PERIECTIC COMPOND IN AN AMOUNT ABOVE THE STOICHIOMETRIC PROPORTION OF THE COMPOUND, REPEATEDLY SUBJECTING THE ROD STRUCTURE TO ZONE MELTING IN FORWARD AND REVERSE DIRECTIONS, AND SUCCESSIVELY SHORTENING THE ZONE TRAVEL TO PRODUCE A MIXED CRYSTAL HAVING A HOMOGENEOUS SINGLE-PHASE MIDDLE PROTION.
Claim 2
Independent Claim
80 words
THE METHOD OF PRODUCING A SINGLE-PHASE MIXED CRYSTAL OF WHICH AT LEAST ONE TERMINAL COMPOUND IS PERITECTIC, COMPRISING THE STEPS OF PREPARING A ROD-SHAPED STRUCTURE OF MIXED CRYSTAL MATERIAL CONTAINING THE LOWEST MELTING COMPONENT OF AT LEAST ONE PERIECTIC COMPOND IN AN AMOUNT ABOVE THE STOICHIOMETRIC PROPORTION OF THE COMPOUND, REPEATEDLY SUBJECTING THE ROD STRUCTURE TO ZONE MELTING IN FORWARD AND REVERSE DIRECTIONS, AND SUCCESSIVELY SHORTENING THE ZONE TRAVEL TO PRODUCE A MIXED CRYSTAL HAVING A HOMOGENEOUS SINGLE-PHASE MIDDLE PROTION.
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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |