US2560424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Titanium tetrachloride treatment process
Assignee: NL Industries Inc
•
Filing: 1949-06-02
•
Granted: 1951-07-10
•
Expires: 1969-06-02
Abstract
No abstract record available.
Inventors
- 👤 Espenschied Helmut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:14
CPC Classifications
C; C01; C01G; C01G23/00; C01G23/02; C01G23/022; C01G23/024
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
METHOD FOR THE PURIFICATION OF A VANADIUMCONTAINING CRUDE TITANIUM TETRACHLORIDE WHICH COMPRISES CONTACTING AT ELEVATED TEMPERATURE SAID TITANIUM TETRACHLORIDE SIMULTANEOUSLY WITH ALUMINUM METAL AND ANHYDROUS ALUMINUM CHLORIDE AND SEPARATING BY DISTILLATION THE PURIFIED PRODUCT.
Claim 2
Dependent Claim
34 words
METHOD FOR THE PURIFICATION OF A VANADIUMCONTAINING CRUDE TITANIUM TETRACHLORIDE WHICH COMPRISES CONTACTING AT ELEVATED TEMPERATURE SAID TITANIUM TETRACHLORIDE SIMULTANEOUSLY WITH ALUMINUM METAL AND ANHYDROUS ALUMINUM CHLORIDE AND SEPARATING BY DISTILLATION THE PURIFIED PRODUCT.
References Cited (Backward Citations)
US2457917A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-09 | 1955-01-08 | 1955-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-09 | 1959-01-08 | 1959-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-09 | 1963-01-08 | 1963-07-10 | $7700.00 | Window Closed / Lapsed |