Patent US2749295A successfully refreshed from Google Patents.
US2749295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic production of titanium
Assignee: NL Industries Inc
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Filing: 1951-10-18
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Granted: 1956-06-05
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Expires: 1971-10-18
Abstract
No abstract record available.
Inventors
- 👤 Kjell A Svanstrom
- 👤 William R Opie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:59
CPC Classifications
C; C25; C25C; C25C7/00; C25C7/005; C25C3/00; C25C3/26; C25C3/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
THE METHOD FOR PRODUCING TITANIUM METAL BY ELECTROLYSIS TITANIUM TETRACHLORIDE IN AN ELECTROLYTIC CELL HAVING A CATHODE, AN INSOLUBLE ANODE AND A FUSED BATH CONSISTING ESSENTIALLY OF SALT SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL HALIDES, ALKALINE EARTH METAL HALIDES AND MIXTURES THEREOF, COMPRISING THE STEPS OF: INTRODUCING TITANIUM TETRACHLORIDE INTO SAID CELL BELOW THE SURFACE OF SAID ELECTROLYTE IN JUXTAPOSITION TO SAID CATHODE TO CONTACT THE SURFACES THEREOF; SIMULTANEOUSLY, WITH THE INTRODUCTION OF SAID TITANIUM TETRACHLORIDE, PASSING ELECTRIC CURRENT BETWEEN SAID ANODE AND SAID CATHODE AT A
Claim 2
Independent Claim
89 words
THE METHOD FOR PRODUCING TITANIUM METAL BY ELECTROLYSIS TITANIUM TETRACHLORIDE IN AN ELECTROLYTIC CELL HAVING A CATHODE, AN INSOLUBLE ANODE AND A FUSED BATH CONSISTING ESSENTIALLY OF SALT SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL HALIDES, ALKALINE EARTH METAL HALIDES AND MIXTURES THEREOF, COMPRISING THE STEPS OF: INTRODUCING TITANIUM TETRACHLORIDE INTO SAID CELL BELOW THE SURFACE OF SAID ELECTROLYTE IN JUXTAPOSITION TO SAID CATHODE TO CONTACT THE SURFACES THEREOF; SIMULTANEOUSLY, WITH THE INTRODUCTION OF SAID TITANIUM TETRACHLORIDE, PASSING ELECTRIC CURRENT BETWEEN SAID ANODE AND SAID CATHODE AT A
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) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |