Patent US2681850A successfully refreshed from Google Patents.
US2681850A
Expired / Lapsed
US
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Production of titanium sesquioxide
Assignee: Horizons Titanium Corp
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Filing: 1952-05-24
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Granted: 1954-06-22
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Expires: 1972-05-24
Abstract
No abstract record available.
Inventors
- 👤 Merle E Sibert
- 👤 Stuart S Carlton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:28
CPC Classifications
C; C01; C01G; C01G23/00; C01G23/04; C01G23/043; C01P; C01P2006/00; C01P2006/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
THE METHOD OF PRODUCING TITANIUM SESQUIOXIDE WHICH COMPRISES FORMING AN INTIMATE MIXTURE OF FINELY DIVIDED TITANIUM CARBIDE AND A METAL OXIDE OF THE GROUP CONSISTING OF MAGNESIUM OXIDE, ZINC OXIDE AND CALCIUM OXIDE, THE AMOUNT OF TITANIUM CARBIDE BEING AT LEAST STOICHIOMETRICALLY EQUIVALENT TO THAT OF THE METAL OXIDE, HEATING THE MIXTURE TO A TEMPERATURE WITHIN THE RANGE OF ABOUT 1000* TO 1200* C. IN AN INERT ATMOSPHERE, REMOVING THE RESULTING EVOLVED CARBON MONOXIDE AND VAPORS OF THE METAL COMPONENT OF SAID METAL OXIDE, AND RECOVERING THE RESULTING RESIDUAL TITANIUM SESQUIOXIDE PRODUCT.
Claim 2
Independent Claim
92 words
THE METHOD OF PRODUCING TITANIUM SESQUIOXIDE WHICH COMPRISES FORMING AN INTIMATE MIXTURE OF FINELY DIVIDED TITANIUM CARBIDE AND A METAL OXIDE OF THE GROUP CONSISTING OF MAGNESIUM OXIDE, ZINC OXIDE AND CALCIUM OXIDE, THE AMOUNT OF TITANIUM CARBIDE BEING AT LEAST STOICHIOMETRICALLY EQUIVALENT TO THAT OF THE METAL OXIDE, HEATING THE MIXTURE TO A TEMPERATURE WITHIN THE RANGE OF ABOUT 1000* TO 1200* C. IN AN INERT ATMOSPHERE, REMOVING THE RESULTING EVOLVED CARBON MONOXIDE AND VAPORS OF THE METAL COMPONENT OF SAID METAL OXIDE, AND RECOVERING THE RESULTING RESIDUAL TITANIUM SESQUIOXIDE PRODUCT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-21 | 1957-12-21 | 1958-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-21 | 1961-12-21 | 1962-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-21 | 1965-12-21 | 1966-06-22 | $7700.00 | Window Closed / Lapsed |