US3079240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of growing single crystals
Assignee: AT&T Inc
•
Filing: 1960-05-13
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Granted: 1963-02-26
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Expires: 1980-05-13
Abstract
No abstract record available.
Inventors
- 👤 Joseph P Remeika
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:01
CPC Classifications
C; C30; C30B; C30B29/00; C30B29/10; C30B29/16; C30B29/22; C04; C04B; C04B35/00; C04B35/01; C04B35/26; C04B35/2641; C04B35/2675; C04B35/2683; C30B9/00; C30B9/04; C30B9/08; C30B9/12; Y; Y10; Y10S; Y10S117/00; Y10S117/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
THE METHOD OF GROWING SINGLE CRYSTALS OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF SYNTHETIC GARNETS, SPINEL FERRITES AND ORTHOFERRITES WHICH COMPRISES HEATING THE CONSTITUENT COMPONENTS OF SAID MATERIAL TOGETHER WITH A MIXTURE OF LEAD OXIDE AND BORON OXIDE, THE WEIGHT RATIO OF PBO TO B2O3 BEING IN THE RANGE OF 9:1 TO 14:1 FOR GARNET GROWTH AND IN THE RANGE OF 18:1 TO 22:1 FOR ORTHOFERRITE AND SPINEL FERRITE GROWTH, THE GROSS NUTRIENT TO FLUX RATIO BEING IN THE RANGE OF 1:1.8 TO 1:2.2 FOR GARNET GROWTH, 1:2.8 TO 1:3.2 FOR ORTHOFERRITES, AND 1:2 TO 1:5 FOR SPINEL FERRITES, AND SLOWLY COOLING THE RESULTANT MELT WHEREBY SAID MATERIAL PRECIPITATES FROM THE MELT IN CRYSTALS.
Claim 2
Independent Claim
116 words
THE METHOD OF GROWING SINGLE CRYSTALS OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF SYNTHETIC GARNETS, SPINEL FERRITES AND ORTHOFERRITES WHICH COMPRISES HEATING THE CONSTITUENT COMPONENTS OF SAID MATERIAL TOGETHER WITH A MIXTURE OF LEAD OXIDE AND BORON OXIDE, THE WEIGHT RATIO OF PBO TO B2O3 BEING IN THE RANGE OF 9:1 TO 14:1 FOR GARNET GROWTH AND IN THE RANGE OF 18:1 TO 22:1 FOR ORTHOFERRITE AND SPINEL FERRITE GROWTH, THE GROSS NUTRIENT TO FLUX RATIO BEING IN THE RANGE OF 1:1.8 TO 1:2.2 FOR GARNET GROWTH, 1:2.8 TO 1:3.2 FOR ORTHOFERRITES, AND 1:2 TO 1:5 FOR SPINEL FERRITES, AND SLOWLY COOLING THE RESULTANT MELT WHEREBY SAID MATERIAL PRECIPITATES FROM THE MELT IN CRYSTALS.
References Cited (Backward Citations)
US2957827A
Cited
US3011868A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |