US2758911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of alkaline earth metal titanates
Assignee: NL Industries Inc
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Filing: 1956-03-16
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Granted: 1956-08-14
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Expires: 1976-03-16
Abstract
No abstract record available.
Inventors
- 👤 Langtry E Lynd
- 👤 Merker Leon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:41
CPC Classifications
C; C01; C01G; C01G23/00; C01G23/003; C01G23/006; C01P; C01P2004/00; C01P2004/50; C01P2004/51; C01P2004/60; C01P2004/62; C01P2006/00; C01P2006/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
54 words
PREPARATION OF FINELY DIVIDED ALKALINE EARTH METAL TITANATE WHICH COMPRISES ADMIXING A TITANIUM OXALATE SOLUTION AND AN ALKALINE EARTH METAL CHLORIDE SOLUTION TO PRECIPITATE AN ALKALINE EARTH METAL TITANIUM OXALATE, FILTERING AND DRYING SAID PRECIPITATE AND CALCINING AT ELEVATED TEMPERATURES UNTIL THE OXALATE VALUES ARE DESTROYED AND THE ALKALINE-EARTH METAL TITANATE COMPOUND IS OBTAINED.
Claim 2
Dependent Claim
54 words
PREPARATION OF FINELY DIVIDED ALKALINE EARTH METAL TITANATE WHICH COMPRISES ADMIXING A TITANIUM OXALATE SOLUTION AND AN ALKALINE EARTH METAL CHLORIDE SOLUTION TO PRECIPITATE AN ALKALINE EARTH METAL TITANIUM OXALATE, FILTERING AND DRYING SAID PRECIPITATE AND CALCINING AT ELEVATED TEMPERATURES UNTIL THE OXALATE VALUES ARE DESTROYED AND THE ALKALINE-EARTH METAL TITANATE COMPOUND IS OBTAINED.
Claim 3
Dependent Claim
49 words
PREPARATION OF FINELY DIVIDED CALCIUM TITANATE WHICH COMPRISES ADMIXING TITANIUM OXALATE SOLUTION, A SOLUTION OF CALCIUM CHLORIDE AND ACETIC ACID TO PRECIPITATE CALCIUM TITANIUM OXALATE, FILTERING AND DRYING SAID PRECIPITATE AND CALCINING AT ELEVATED TEMPERATURES UNTIL THE OXALATE VALUES ARE DESTROYED AND A FINELY DIVIDED TITANATE COMPOSITION IS OBTAINED.
Claim 4
Dependent Claim
49 words
PREPARATION OF FINELY DIVIDED CALCIUM TITANATE WHICH COMPRISES ADMIXING TITANIUM OXALATE SOLUTION, A SOLUTION OF CALCIUM CHLORIDE AND ACETIC ACID TO PRECIPITATE CALCIUM TITANIUM OXALATE, FILTERING AND DRYING SAID PRECIPITATE AND CALCINING AT ELEVATED TEMPERATURES UNTIL THE OXALATE VALUES ARE DESTROYED AND A FINELY DIVIDED TITANATE COMPOSITION IS OBTAINED.
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) | 1959-08-14 | 1960-02-13 | 1960-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-14 | 1964-02-13 | 1964-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-14 | 1968-02-13 | 1968-08-14 | $7700.00 | Window Closed / Lapsed |