Patent US2512807A successfully refreshed from Google Patents.
US2512807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Purification of titanium halides
Assignee: Individual
•
Filing: 1947-09-23
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Granted: 1950-06-27
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Expires: 1967-09-23
Abstract
No abstract record available.
Inventors
- 👤 Nicholson Douglas Gillison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:18
CPC Classifications
C; C01; C01G; C01G23/00; C01G23/02; C01G23/022; C01G23/024
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
A METHOD OF DECOLORIZING AND PURIFYING A COLORED AND IMPURE TITANIUM TETRAHALIDE WHICH COMPRISES MIXING SAID TTRAHALIDE WITH A TITANYL HALIDE, HEATING THE RESULTING MIXTURE AND SUBSEQUENTLY DISTILLING OFF THE PURIFIED TETRAHALIDE.
Claim 2
Independent Claim
32 words
A METHOD OF DECOLORIZING AND PURIFYING A COLORED AND IMPURE TITANIUM TETRAHALIDE WHICH COMPRISES MIXING SAID TTRAHALIDE WITH A TITANYL HALIDE, HEATING THE RESULTING MIXTURE AND SUBSEQUENTLY DISTILLING OFF THE PURIFIED TETRAHALIDE.
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) | 1953-06-26 | 1953-12-26 | 1954-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-26 | 1957-12-26 | 1958-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-26 | 1961-12-26 | 1962-06-27 | $7700.00 | Window Closed / Lapsed |