US3322499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and process for the production of metal oxides
Assignee: Cabot Corp
•
Filing: 1964-01-13
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Granted: 1967-05-30
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Expires: 1984-01-13
Abstract
No abstract record available.
Inventors
- 👤 Carpenter Clifford Le Roy
- 👤 Charles B Wendell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:22
CPC Classifications
C; C01; C01G; C01G23/00; C01G23/04; C01G23/047; C01G23/07; C01B; C01B13/00; C01B13/14; C01B13/20; C01B13/22; C01B33/00; C01B33/113; C01B33/12; C01B33/18; C01B33/181; C01B33/183
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A PROCESS FOR PRODUCING A PYROGENIC METAL OXIDE WHICH COMPRISES PROVIDING AT LEAST ONE SPINNING STREAM COMPRISING CARBON MONOXIDE, AND AT LEAST ONE SPINNING STREAM COMPRISING OXYGEN, INTRODUCING TO ONE OF SAID STREAMS VAPORS OF A METAL COMPOUND, AT LEAST PARTIALLY MIXING SAID STREAMS BY CAUSING THEM TO FLOW A CIRULITOUS PATH THROUGH A MIXING ZONE AND FLOWING THE RESULTING SPINNING MIXTURE INTO THE SMALL BASE END OF A FRUSTO-CONICAL REACTION ZONE AT A MINIMUM LINEAR VELOCITY OF ABOUT 75 FEET PER SECOND, AND AT A PRESSURE DROP AT THE ENTRANCE OF SAID SMALL BASE END GREATER THAN THE PRESSURE DROP IN SAID MIXING ZONE.
Claim 2
Dependent Claim
13 words
THE PROCESS OF CLAIM 4 WHEREIN SAID METAL COMPOUND IS A TITANIUM HALIDE.
References Cited (Backward Citations)
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US2576228A
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US2848305A
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US2822411A
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US2890929A
Cited
US3054831A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-29 | 1970-11-28 | 1971-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-29 | 1974-11-28 | 1975-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-29 | 1978-11-28 | 1979-05-30 | $7700.00 | Window Closed / Lapsed |