US2798048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Annealed titanium-bearing slags of improved reactivity
Assignee: Wyeth Holdings LLC
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Filing: 1954-03-02
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Granted: 1957-07-02
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Expires: 1974-03-02
Abstract
No abstract record available.
Inventors
- 👤 Jr Ralph J Magri
- 👤 Guy C Marcot
- 👤 Winfred J Cauwenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:14
CPC Classifications
C; C22; C22B; C22B34/00; C22B34/10; C22B34/12; C22B34/1204; C22B34/1209
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A METHOD OF IMPROVING THE REACTIVITY OF TITANIUMBEARING SLAGS PRODUCED BY SMELTING IRON-TITANIUM ORES AT TEMPERATURES AT WHICH A HOMOGENEOUS FLUID SLAG CONTAINING DITITANATES AND GLASSY SILICEOUS MATERIAL IS FORMED WHICH COMPRISES ANNEALING SAID SLAGS BY CASTING THEM INTO MASSES HAVING A MINIMUM DIMENSION OF AT LEAST 4 INCHES AND WEIGHING AT LEAST 4,000 POUNDS ND COOLING SAID MASSES BY CONVECTION THROUGH THE TEMPERATURE RANGE OF 2700* F. TO 2200* F. WHEREBY THE SLAGS IS CONVERTED INTO A BODY OF COARSE DITITANATE CRYSTALS HAVING THE GLASSY SILICEOUS MATERIAL SUBSTANTIALLY COMPLETELY SEGREGATED AT THE INTERFACES THEREOF.
Claim 2
Dependent Claim
41 words
A TITANIUM-BEARING SLAG OF IMPROVED REACTIVITY CONSISTING ESSENTIALLY OF A MASS OF COARSE DITITANATE CRYSTALS SUBSTANTIALLY FREE FROM SULFURIC ACID-INSOLUBLE MATERIAL AND HAVING AN AVERAGE WIDTH GREATER THAN 150 MICRONS WITH GLASSY SILICEOUS GANGUE SUBSTANTIALLY COMPLETELY SEGREGATED AT THE INTERFACES THEREOF.
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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) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |