US2631941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Titanium concentrates
Assignee: NL Industries Inc
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Filing: 1949-05-17
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Granted: 1953-03-17
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Expires: 1969-05-17
Abstract
No abstract record available.
Inventors
- 👤 Sandford S Cole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:31
CPC Classifications
C; C22; C22B; C22B34/00; C22B34/10; C22B34/12; C22B34/1204; C22B34/1209
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
AS A NEW COMPOSITION OF MATTER A TITANIFEROUS CONCENTRATE DERIVED FROM AN ILMENITE-CONTAINING ORE, CONTAINING AT LEAST 55% TIO2, IRON OXIDE, FEO, IN AMOUNT FROM 1% TO 10% BY WEIGHT AND GANGUE IN AMOUNT NOT MORE THAN 15% BY WEIGHT, SAID CONCENTRATE BEING CHARACTERIZED BY A CONTENT OF AT LEAST 50% BY WEIGHT OF MATERIAL HAVING THE X-RAY STRUCTURE OF MAGNESIUM DITITANATE, MGO,.2TIO2, AND BY BEING DIGESTIBLE IN STRONG SULPHURIC AID.
Claim 2
Dependent Claim
71 words
AS A NEW COMPOSITION OF MATTER A TITANIFEROUS CONCENTRATE DERIVED FROM AN ILMENITE-CONTAINING ORE, CONTAINING AT LEAST 55% TIO2, IRON OXIDE, FEO, IN AMOUNT FROM 1% TO 10% BY WEIGHT AND GANGUE IN AMOUNT NOT MORE THAN 15% BY WEIGHT, SAID CONCENTRATE BEING CHARACTERIZED BY A CONTENT OF AT LEAST 50% BY WEIGHT OF MATERIAL HAVING THE X-RAY STRUCTURE OF MAGNESIUM DITITANATE, MGO,.2TIO2, AND BY BEING DIGESTIBLE IN STRONG SULPHURIC AID.
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) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |