Patent US3734761A successfully refreshed from Google Patents.
US3734761A
Expired / Lapsed
US
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Process for producing titanium dioxide product containing aluminum oxide
Assignee: NAT LEAD CO
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Filing: 1971-01-21
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Granted: 1973-05-22
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Expires: 1991-01-21
Abstract
Abstract A METAL COMPOUND IS PREPARED BY MELTING A METAL IN A HIGH TEMPERATURE HEATING ZONE, ATOMIZING THE MOLTEN METAL AND REACTING THE ATOMIZED METAL WITH A GAS TO PRODUCE A METAL COMPOUND.
Inventors
- 👤 J Becker
- 👤 A Bellinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:05
CPC Classifications
C; C01; C01B; C01B13/00; C01B13/14; C01B13/20; C01B13/22; C01G; C01G23/00; C01G23/04; C01G23/047; C01G23/07
Claims Analysis
Total Claims: 0
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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) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |