US2962370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for concentrating gallium oxide
Assignee: Alcoa Corp
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Filing: 1959-02-20
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Granted: 1960-11-29
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Expires: 1979-02-20
Abstract
No abstract record available.
Inventors
- 👤 Luther M Foster
- 👤 Long George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:56
CPC Classifications
C; C22; C22B; C22B58/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
THE PROCESS OF CONCENTRATING GALLIUM OXIDE, COMPRISING HEATING SOLID MATERIAL CONTAINING GALLIUM OXIDE AND ALUMINA UNDER REDUCING CONDITIONS AT A TEMPERATURE ABOVE 1000*C. TO VOLATILIZE GALLIUM OXIDE AND ALUMINA THEREFROM, CONDUCTING THE RESULTANT VOLATILIZED GALLIUM OXIDE AND ALUMINA UNDER REDUCING CONDITIONS TO A CONDENSING ZONE AND CONDENSING THEM IN THE SAID ZONE, THE MOLECULAR RATIO OF GALLIUM OXIDE TO ALUMINA IN THE CONDENSATE BEING HIGHER THAN THE RATIO OF GALLIUM OXIDE TO ALUMINA IN THE SAID ALUMINA-BEARING MATERIAL.
Claim 2
Dependent Claim
78 words
THE PROCESS OF CONCENTRATING GALLIUM OXIDE, COMPRISING HEATING SOLID MATERIAL CONTAINING GALLIUM OXIDE AND ALUMINA UNDER REDUCING CONDITIONS AT A TEMPERATURE ABOVE 1000*C. TO VOLATILIZE GALLIUM OXIDE AND ALUMINA THEREFROM, CONDUCTING THE RESULTANT VOLATILIZED GALLIUM OXIDE AND ALUMINA UNDER REDUCING CONDITIONS TO A CONDENSING ZONE AND CONDENSING THEM IN THE SAID ZONE, THE MOLECULAR RATIO OF GALLIUM OXIDE TO ALUMINA IN THE CONDENSATE BEING HIGHER THAN THE RATIO OF GALLIUM OXIDE TO ALUMINA IN THE SAID ALUMINA-BEARING MATERIAL.
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) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |