US2720281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Purification of titanium trichloride
Assignee: Monsanto Chemicals Ltd
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Filing: 1952-10-31
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Granted: 1955-10-11
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Expires: 1972-10-31
Abstract
No abstract record available.
Inventors
- 👤 Robert A Ruehrwein
- 👤 Gordon B Skinner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:54
CPC Classifications
C; C01; C01G; C01G23/00; C01G23/02; C01G23/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
THE METHOD OF OBTAINING, FROM A GASEOUS MIXTURE CONTAINING TITANIUM TRICHLORIDE, CARBON MONOXIDE AND SUFFICIENT TITANIUM TETRACHLORIDE TO PRREVENT THE DECOMPOSITION OF SAID TITANIUM TRICHLORDE, SOLID TITANIUM TRICHLORIDE SUBSTANTIALLY FREE FROM CONTAMINATION BY REACTION PRODUCTS OF CARBON MONOXIDE, WHICH COMPRISES RAPIDLY COOLING SAID GASEOUS MIXTURE FROM A TEMPERATUE ABOVE ABOUT 800* C. TO BELOW THE DEWPOINT TEMPERATURE OF THE TITANIUM TRICHLORIDE IN THE GAS STREAM, AT A RATE SUFFICIENTLY RAPID TO SUBSTANTIALLY PREVENT REACTION BETWEEN GASEOUS TITANIUM TRICHLORIDE AND CARBON MONOXIDE.
Claim 2
Independent Claim
81 words
THE METHOD OF OBTAINING, FROM A GASEOUS MIXTURE CONTAINING TITANIUM TRICHLORIDE, CARBON MONOXIDE AND SUFFICIENT TITANIUM TETRACHLORIDE TO PRREVENT THE DECOMPOSITION OF SAID TITANIUM TRICHLORDE, SOLID TITANIUM TRICHLORIDE SUBSTANTIALLY FREE FROM CONTAMINATION BY REACTION PRODUCTS OF CARBON MONOXIDE, WHICH COMPRISES RAPIDLY COOLING SAID GASEOUS MIXTURE FROM A TEMPERATUE ABOVE ABOUT 800* C. TO BELOW THE DEWPOINT TEMPERATURE OF THE TITANIUM TRICHLORIDE IN THE GAS STREAM, AT A RATE SUFFICIENTLY RAPID TO SUBSTANTIALLY PREVENT REACTION BETWEEN GASEOUS TITANIUM TRICHLORIDE AND CARBON MONOXIDE.
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) | 1958-10-10 | 1959-04-11 | 1959-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-10 | 1963-04-11 | 1963-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-10 | 1967-04-11 | 1967-10-11 | $7700.00 | Window Closed / Lapsed |