Patent US2515463A successfully refreshed from Google Patents.
US2515463A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making titanium carbide
Assignee: Kennametal Inc
•
Filing: 1948-03-19
•
Granted: 1950-07-18
•
Expires: 1968-03-19
Abstract
No abstract record available.
Inventors
- 👤 Philip M Mckenna
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:36
CPC Classifications
C; C01; C01B; C01B32/00; C01B32/90; C01P; C01P2002/00; C01P2002/70; C01P2002/77; C01P2006/00; C01P2006/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
THE PROCESS FOR MAKING TITANIUM CARBIDE INCLUDING THE STEPS OF DISSOLVING TITANIUM AND CARBON IN MOLTEN IRON, THE RATIO BY WEIGHT OF TITANIUM TO IRON BEING NOT LESS THAN 2 TO 5, MAINTAINING THE MOLTEN MASS FOR AT LEAST ONE HOUR AT A TEMPERATURE ABOVE AT LEAST ABOUT 2800*C. UNTIL THE TITANIUM HAS REACTED WITH THE CARBON TO FORM TITANIUM CARBIDE, COOLING THE MOLTEN MASS TO SOLIDIFY IT, TREATING THE COOLED MATERIAL WITH A SOLVENT AND WASHING TO DISSOLVE THE REMOVE ALL INGREDIENTS THEREO OTHER THAN TITANIUM CARBIDE AND FREE CARBON, SEPARATING AND REMOVING THE FREE CARBON FROM THE TITANIUM CARBIDE, AND DRYING THE RESIDUE.
Claim 2
Dependent Claim
105 words
THE PROCESS FOR MAKING TITANIUM CARBIDE INCLUDING THE STEPS OF DISSOLVING TITANIUM AND CARBON IN MOLTEN IRON, THE RATIO BY WEIGHT OF TITANIUM TO IRON BEING NOT LESS THAN 2 TO 5, MAINTAINING THE MOLTEN MASS FOR AT LEAST ONE HOUR AT A TEMPERATURE ABOVE AT LEAST ABOUT 2800*C. UNTIL THE TITANIUM HAS REACTED WITH THE CARBON TO FORM TITANIUM CARBIDE, COOLING THE MOLTEN MASS TO SOLIDIFY IT, TREATING THE COOLED MATERIAL WITH A SOLVENT AND WASHING TO DISSOLVE THE REMOVE ALL INGREDIENTS THEREO OTHER THAN TITANIUM CARBIDE AND FREE CARBON, SEPARATING AND REMOVING THE FREE CARBON FROM THE TITANIUM CARBIDE, AND DRYING THE RESIDUE.
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) | 1953-07-17 | 1954-01-16 | 1954-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-17 | 1958-01-16 | 1958-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-17 | 1962-01-16 | 1962-07-18 | $7700.00 | Window Closed / Lapsed |