Patent US2898278A successfully refreshed from Google Patents.
US2898278A
Expired / Lapsed
US
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Process for the production of highpurity gallium
Assignee: BBC Brown Boveri AG Germany
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Filing: 1957-11-21
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Granted: 1959-08-04
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Expires: 1977-11-21
Abstract
No abstract record available.
Inventors
- 👤 Plust Heinz Gunther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:11
CPC Classifications
C; C22; C22B; C22B58/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
PROCESS FOR THE PRODUCTION OF GALLIUM OF HIGH PURITY, CHARACTERIZED IN THAT AN ORGANIC COMPOUND OF GALLIUM OF THE FORMULA GAH2R(3-R) (WHEREIN R REPRESENTS A LOWER ALKYL RADICAL, AND X IS A WHOLE NUMBER LESS THAN THREE) IS PREPARED FROM TECHNICALLY PURE GALLIUM, AND THAT THIS COMPOUND IS DECOMPOSED BY ULTRAVIOLET RADIATION YIELDING GALLIUM OF HIGH PURITY AS A DECOMPOSITION PRODUCT.
Claim 2
Dependent Claim
61 words
PROCESS FOR THE PRODUCTION OF GALLIUM OF HIGH PURITY, CHARACTERIZED IN THAT AN ORGANIC COMPOUND OF GALLIUM OF THE FORMULA GAH2R(3-R) (WHEREIN R REPRESENTS A LOWER ALKYL RADICAL, AND X IS A WHOLE NUMBER LESS THAN THREE) IS PREPARED FROM TECHNICALLY PURE GALLIUM, AND THAT THIS COMPOUND IS DECOMPOSED BY ULTRAVIOLET RADIATION YIELDING GALLIUM OF HIGH PURITY AS A DECOMPOSITION PRODUCT.
References Cited (Backward Citations)
GB191317790A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-03 | 1963-02-02 | 1963-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-03 | 1967-02-02 | 1967-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-03 | 1971-02-02 | 1971-08-04 | $7700.00 | Window Closed / Lapsed |