Patent US3305301A successfully refreshed from Google Patents.
US3305301A
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Process for the growth of ordered lithium ferrite
Assignee: AT&T Inc
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Filing: 1963-04-03
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Granted: 1967-02-21
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Expires: 1983-04-03
Abstract
No abstract record available.
Inventors
- 👤 Joseph P Remeika
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:09
CPC Classifications
C; C30; C30B; C30B29/00; C30B29/10; C30B29/16; C30B29/22; C04; C04B; C04B35/00; C04B35/01; C04B35/26; C04B35/2691; C30B9/00; C30B9/04; C30B9/08; C30B9/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
THE METHOD OF GROWING SINGLE CYRSTAL ORDERED LITHIUM FERTILE WHICH COMPRISES THE STEPS OF HAVING A NUTRIENT COMPRISING A MIXTURE OF (A) AN EXCESS OF AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF LITHIUM OXALATE, LITHIUM HYDROXIDE, AND LITHIUM CARBONATE, AND (B) AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF IRON OXALATE, IRON CARBONATE, AND IRON OXIDE TOGETHER WITH A FLUX COMPRISING A MIXTURE OF BORON OXIDE AND LEAD OXIDE, THE WEIGHT RATIO OF BORON OXIDE TO LEAD OXIDE BEING IN THE RANGE OF 1:5.8 TO 1:6.6, THE GROSS NUTRIENT TO FLUX RATIO BEING IN THE RANGE OF 1:3.7 TO 1:4.0, TO A TEMPERATURE SUFFICIENT TO DISSOLVE THE SAID NUTRIENT AND COOLING THE RESULTANT MELT TO A TEMPERATURE OF THE ORDER OF 500*C. WHEREBY SAID ORDERED LITHIUM FERRITE PRECIPTATES FROM THE MELT IN CRYSTALS.
Claim 2
Independent Claim
138 words
THE METHOD OF GROWING SINGLE CYRSTAL ORDERED LITHIUM FERTILE WHICH COMPRISES THE STEPS OF HAVING A NUTRIENT COMPRISING A MIXTURE OF (A) AN EXCESS OF AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF LITHIUM OXALATE, LITHIUM HYDROXIDE, AND LITHIUM CARBONATE, AND (B) AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF IRON OXALATE, IRON CARBONATE, AND IRON OXIDE TOGETHER WITH A FLUX COMPRISING A MIXTURE OF BORON OXIDE AND LEAD OXIDE, THE WEIGHT RATIO OF BORON OXIDE TO LEAD OXIDE BEING IN THE RANGE OF 1:5.8 TO 1:6.6, THE GROSS NUTRIENT TO FLUX RATIO BEING IN THE RANGE OF 1:3.7 TO 1:4.0, TO A TEMPERATURE SUFFICIENT TO DISSOLVE THE SAID NUTRIENT AND COOLING THE RESULTANT MELT TO A TEMPERATURE OF THE ORDER OF 500*C. WHEREBY SAID ORDERED LITHIUM FERRITE PRECIPTATES FROM THE MELT IN CRYSTALS.
References Cited (Backward Citations)
US2957827A
Cited
US3079240A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |