US2827360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of high purity barium metatitanate
Assignee: NL Industries Inc
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Filing: 1954-11-03
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Granted: 1958-03-18
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Expires: 1974-11-03
Abstract
No abstract record available.
Inventors
- 👤 Blumenthal Warren Barnett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:18
CPC Classifications
C; C01; C01G; C01G23/00; C01G23/003; C01G23/006; C04; C04B; C04B35/00; C04B35/01; C04B35/46; C04B35/462; C04B35/465; C04B35/468; C04B35/4682; C01P; C01P2002/00; C01P2002/02; C01P2004/00; C01P2004/60; C01P2004/61; C01P2004/62; C01P2006/00; C01P2006/80
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A PROCESS FOR MANUFACTURING HIGHLY PURFIED BARIUM METATITANATE WHICH COMPRISES CALCINING BARIUM OXIDE AND TITANIUM DIOXIDE AT A TEMPERATURE OF AT LEAST ABOUT 1035*C., DISSOLVING THE PRODUCT OF SAID CALCINATION BY TREATMENT WITH HYDROCHLORIC, REMOVING INSOLUBLE IMPURITIER, PRECIPITATING BARIUM TITANYL OXALATE FROM THE SOLUTION, AND CALCINING SAID BARIUM TITANYL OXALATE TO FORM BARIUM MATATITANATE.
Claim 2
Dependent Claim
54 words
A PROCESS FOR MANUFACTURING HIGHLY PURFIED BARIUM METATITANATE WHICH COMPRISES CALCINING BARIUM OXIDE AND TITANIUM DIOXIDE AT A TEMPERATURE OF AT LEAST ABOUT 1035*C., DISSOLVING THE PRODUCT OF SAID CALCINATION BY TREATMENT WITH HYDROCHLORIC, REMOVING INSOLUBLE IMPURITIER, PRECIPITATING BARIUM TITANYL OXALATE FROM THE SOLUTION, AND CALCINING SAID BARIUM TITANYL OXALATE TO FORM BARIUM MATATITANATE.
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) | 1961-03-17 | 1961-09-16 | 1962-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-17 | 1965-09-16 | 1966-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-17 | 1969-09-16 | 1970-03-18 | $7700.00 | Window Closed / Lapsed |