Patent US3203762A successfully refreshed from Google Patents.
US3203762A
Expired / Lapsed
US
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Apparatus and process for the production of titanium dioxide
Assignee: Cabot Corp
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Filing: 1962-11-30
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Granted: 1965-08-31
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Expires: 1982-11-30
Abstract
No abstract record available.
Inventors
- 👤 Carpenter Clifford Le Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:08
CPC Classifications
C; C01; C01G; C01G23/00; C01G23/04; C01G23/047; C01G23/07; C01P; C01P2004/00; C01P2004/60; C01P2004/62; C01P2006/00; C01P2006/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A PROCESS FOR CONVERTING AT TEMPERATURES ABOVE ABOUT 800*C. IN A DOUBLE WALLED REACTION CHAMBER TITANIUM TETRACHLORIDE IN VAPOR FORM TO SOLID TITANIUM OXIDES IN AEROSOL FORM WHILE PREVENTING THE ACCRETION OF SUBSTANTIAL SOLID MATTER ON THE WALLS OF SAID REACTION CHAMBER, WHICH COMPRISES INTRODUCING AXIALLY INTO ONE END OF THE REACTION CHAMBER (A) TITANIUM TETRACHLORIDE AND (B) A CO-REACTANT COMPRISING A MOLECULAR OXYGEN-CONTAINING GAS, PERIODICALLY FLEXING THE WALL OF SAID REACTION CHAMBER BY VARYING THE PRESSURE BETWEEN THE INNER AND OUTER WALLS AND CONDUCTING THE AEROSOL FORMED IN SAID CHAMBER FROM THE END OF SAID CHAMBER OPPOSITE TO THE END WHEREIN SAID SUBSTANCE IS INTRODUCED.
Claim 2
Dependent Claim
106 words
A PROCESS FOR CONVERTING AT TEMPERATURES ABOVE ABOUT 800*C. IN A DOUBLE WALLED REACTION CHAMBER TITANIUM TETRACHLORIDE IN VAPOR FORM TO SOLID TITANIUM OXIDES IN AEROSOL FORM WHILE PREVENTING THE ACCRETION OF SUBSTANTIAL SOLID MATTER ON THE WALLS OF SAID REACTION CHAMBER, WHICH COMPRISES INTRODUCING AXIALLY INTO ONE END OF THE REACTION CHAMBER (A) TITANIUM TETRACHLORIDE AND (B) A CO-REACTANT COMPRISING A MOLECULAR OXYGEN-CONTAINING GAS, PERIODICALLY FLEXING THE WALL OF SAID REACTION CHAMBER BY VARYING THE PRESSURE BETWEEN THE INNER AND OUTER WALLS AND CONDUCTING THE AEROSOL FORMED IN SAID CHAMBER FROM THE END OF SAID CHAMBER OPPOSITE TO THE END WHEREIN SAID SUBSTANCE IS INTRODUCED.
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) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |