Patent US3117934A successfully refreshed from Google Patents.
US3117934A
Expired / Lapsed
US
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Garnet growth from barium oxide-boron oxide flux
Assignee: AT&T Inc
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Filing: 1961-04-17
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Granted: 1964-01-14
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Expires: 1981-04-17
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert C Linares
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:24
CPC Classifications
C; C01; C01F; C01F17/00; C30; C30B; C30B9/00; C30B9/04; C30B9/08; C30B9/12; C04; C04B; C04B35/00; C04B35/01; C04B35/26; C04B35/2608; C30B29/00; C30B29/10; C30B29/16; C30B29/22; C30B29/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
THE METHOD OF GROWING SINGLE CRYSTALS OF THE GARNET STRUCTURE CONSISTING ESSENTIALLY OF A COMPOUND REPRESENTED BY THE FORMULA M3ME5O12 WHERE M IS AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF YTTRIUM AND RARE EARTH ELEMENTS HAVING AN ATOMIC NUMBER WITHIN THE RANGE OF 62 TO 71, ME IS AT LEAST ONE TRIVALENT METAL SELECTED FROM THE GROUP CONSISTING OF TRIVALENT IRON, GALLIUM, SCANDIUM, CHROMIUM AND COBALT, AND O IS OXYGEN WHICH COMPRISES HEATING A NUTRIENT CONSISTING ESSENTIALLY OF THE CONSTITUENT COMPONENTS OF SAID GARNET IN STOICHIOMETRIC AMOUNTS ADDITIONALLY CONTAINING UP TO 90 PERCENT EXCESS IRON BY WEIGHT WHEN THE TRIVALENT MATTER SELECTED IS IRON TO A TEMPERATURE OF ABOUT 1260*C. TOGETHER WITH A FLUX CONSISTING ESSENTIALLY OF A MIXTURE OF BARIUM OXIDE AND BORON OXIDE, THE WEIGHT RATIO OF BARIUM OXIDE TO BORON OXIDE BEING IN THE RANGE OF 3.16:1 TO 4.55:1, THE GROSS NUTRIENT TO FLUX RATIO BEING IN THE RANGE OF 1:1.8 TO 1:4.5 BY WEIGHT AND COOLING THE RESULTANT MELT WHEREBY SAID GARNET PRECIPITATES FROM THE MELT IN CRYSTALS.
Claim 2
Independent Claim
175 words
THE METHOD OF GROWING SINGLE CRYSTALS OF THE GARNET STRUCTURE CONSISTING ESSENTIALLY OF A COMPOUND REPRESENTED BY THE FORMULA M3ME5O12 WHERE M IS AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF YTTRIUM AND RARE EARTH ELEMENTS HAVING AN ATOMIC NUMBER WITHIN THE RANGE OF 62 TO 71, ME IS AT LEAST ONE TRIVALENT METAL SELECTED FROM THE GROUP CONSISTING OF TRIVALENT IRON, GALLIUM, SCANDIUM, CHROMIUM AND COBALT, AND O IS OXYGEN WHICH COMPRISES HEATING A NUTRIENT CONSISTING ESSENTIALLY OF THE CONSTITUENT COMPONENTS OF SAID GARNET IN STOICHIOMETRIC AMOUNTS ADDITIONALLY CONTAINING UP TO 90 PERCENT EXCESS IRON BY WEIGHT WHEN THE TRIVALENT MATTER SELECTED IS IRON TO A TEMPERATURE OF ABOUT 1260*C. TOGETHER WITH A FLUX CONSISTING ESSENTIALLY OF A MIXTURE OF BARIUM OXIDE AND BORON OXIDE, THE WEIGHT RATIO OF BARIUM OXIDE TO BORON OXIDE BEING IN THE RANGE OF 3.16:1 TO 4.55:1, THE GROSS NUTRIENT TO FLUX RATIO BEING IN THE RANGE OF 1:1.8 TO 1:4.5 BY WEIGHT AND COOLING THE RESULTANT MELT WHEREBY SAID GARNET PRECIPITATES FROM THE MELT IN CRYSTALS.
References Cited (Backward Citations)
US2957827A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-13 | 1967-07-15 | 1968-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-13 | 1971-07-15 | 1972-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-13 | 1975-07-15 | 1976-01-14 | $7700.00 | Window Closed / Lapsed |