Patent US400391A successfully refreshed from Google Patents.
Patent US2917440A successfully refreshed from Google Patents.
US2917440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Titanium metal production
Assignee: EIDP Inc
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Filing: 1953-07-24
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Granted: 1959-12-15
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Expires: 1973-07-24
Abstract
No abstract record available.
Inventors
- 👤 Carl M Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:03
CPC Classifications
C; C25; C25C; C25C3/00; C25C3/26; C25C3/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A METHOD OF PREPARING PURE TITANIUM METAL WHICH COMPRISES SUBJECTING TO ELECTROLYSIS A CRUDE MOLTEN ALLOY OF TITANIUM WITH A MORE NOBLE METAL THAN SAID TITAMIUM AND HAVING A MELTING POINT BELOW PURE TITANIUM, EFFECTING SAID ELECTROLYSIS UNDER AN INERT ATMOSPHERE AND IN AN ELECTROLYTIC CELL MAINTAINED AT A TEMPERATURE ABOVE THE MELTING POINT OF SAID ALLOY, EMPOLYING THE LATTER AS AN ANODE IN SAID CELL AND AN ELECTROLYTE INITIALLY CONSISTING ESSENTIALLY OF A MOLTEN ANHYDROUS HALIDE OF A METAL LESS NOBLE THAN TITANIUM, TRANSFERRING BY MEANS OF AN ELECTRIC CURRENT AND WHILE MAINTAINING SIAD ANODE MOLTEN THE TITANIUM METAL VALUES FROM SAID MOLTEN ALLOY ANODE
Claim 2
Independent Claim
106 words
A METHOD OF PREPARING PURE TITANIUM METAL WHICH COMPRISES SUBJECTING TO ELECTROLYSIS A CRUDE MOLTEN ALLOY OF TITANIUM WITH A MORE NOBLE METAL THAN SAID TITAMIUM AND HAVING A MELTING POINT BELOW PURE TITANIUM, EFFECTING SAID ELECTROLYSIS UNDER AN INERT ATMOSPHERE AND IN AN ELECTROLYTIC CELL MAINTAINED AT A TEMPERATURE ABOVE THE MELTING POINT OF SAID ALLOY, EMPOLYING THE LATTER AS AN ANODE IN SAID CELL AND AN ELECTROLYTE INITIALLY CONSISTING ESSENTIALLY OF A MOLTEN ANHYDROUS HALIDE OF A METAL LESS NOBLE THAN TITANIUM, TRANSFERRING BY MEANS OF AN ELECTRIC CURRENT AND WHILE MAINTAINING SIAD ANODE MOLTEN THE TITANIUM METAL VALUES FROM SAID MOLTEN ALLOY ANODE
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) | 1962-12-14 | 1963-06-15 | 1963-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-14 | 1967-06-15 | 1967-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-14 | 1971-06-15 | 1971-12-15 | $7700.00 | Window Closed / Lapsed |