Patent US3015556A successfully refreshed from Google Patents.
US3015556A
Expired / Lapsed
US
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Method of refining metals
Assignee: Lummus Technology LLC
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Filing: 1958-10-31
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Granted: 1962-01-02
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Expires: 1978-10-31
Abstract
No abstract record available.
Inventors
- 👤 Karl J Korpi
- 👤 Raymond C Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:56
CPC Classifications
C; C22; C22B; C22B5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
THE METHOD OF PRODUCING A METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, ZIRCONIUM, HAFNIUM, TUNGSTEN AND URANIUM BY THE DISPROPORTIONATION OF A LOWER BROMIDE OF THE METAL TO FORM THE AND A HIGHER BROMIDE OF THE METAL WHICH COMPRISES: HALOGENATING A CRUDE MIXTURE OF SAID METAL WITH A HIGHER BROMIDE OF SAID METAL TO FORM A LOWER BROMIDE OF SAID METAL; EFFECTING SAID HALOGENATION IN A FIRST REACTION ZONE AND AT A TEMPERATURE ABOVE THE BOILING POINT OF SAID LOWER BROMIDE OF THE METAL AND ABOVE THE BOILING POINT OF SAID HIGHER BROMIDE OF THE METAL THEREBY TO FORM SAID LOWER BROMIDE AS A METAL IN SAID ZONE; WITHDRAWING SAID LOWER BROMIDE AS A VAPOR FROM SAID FIRST REACTION ZONE; CONDENSING SAID VAPOROUS LOWER BROMIDE AND EFFECTING THE DISPROPORTIONATION OF
Claim 2
Independent Claim
131 words
THE METHOD OF PRODUCING A METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, ZIRCONIUM, HAFNIUM, TUNGSTEN AND URANIUM BY THE DISPROPORTIONATION OF A LOWER BROMIDE OF THE METAL TO FORM THE AND A HIGHER BROMIDE OF THE METAL WHICH COMPRISES: HALOGENATING A CRUDE MIXTURE OF SAID METAL WITH A HIGHER BROMIDE OF SAID METAL TO FORM A LOWER BROMIDE OF SAID METAL; EFFECTING SAID HALOGENATION IN A FIRST REACTION ZONE AND AT A TEMPERATURE ABOVE THE BOILING POINT OF SAID LOWER BROMIDE OF THE METAL AND ABOVE THE BOILING POINT OF SAID HIGHER BROMIDE OF THE METAL THEREBY TO FORM SAID LOWER BROMIDE AS A METAL IN SAID ZONE; WITHDRAWING SAID LOWER BROMIDE AS A VAPOR FROM SAID FIRST REACTION ZONE; CONDENSING SAID VAPOROUS LOWER BROMIDE AND EFFECTING THE DISPROPORTIONATION OF
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-01 | 1965-07-03 | 1966-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-01 | 1969-07-03 | 1970-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-01 | 1973-07-03 | 1974-01-02 | $7700.00 | Window Closed / Lapsed |