US3334992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vanadium containing addition agent and process for producing same
Assignee: Union Carbide Corp
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Filing: 1964-01-27
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Granted: 1967-08-08
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Expires: 1984-01-27
Abstract
No abstract record available.
Inventors
- 👤 James H Downing
- 👤 Rodney F Merkert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:54
CPC Classifications
C; C21; C21C; C21C7/00; C21C7/04; C21C7/076; C01; C01B; C01B32/00; C01B32/90; C01B32/914; C22; C22B; C22B34/00; C22B34/20; C22B34/22; C22B34/30; C22B34/34; C22C; C22C33/00; C01P; C01P2004/00; C01P2004/60; C01P2004/61; C01P2006/00; C01P2006/10; C01P2006/80; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
71 words
AN ADDITION AGENT FOR USE IN THE MANUFACTURE OF STEEL CONSISTING ESSENTIALLY OF VANADIUM, CARBON AND ABOUT 2 TO 10% IRON, SAID ADDITION AGENT BEING AT LEAST 80% IN THE FORM OF COMBINED VANADIUM AND CARBON AND CONTAINING LESS THAN 2% OXYGEN, WITH THE PREDOMINANT PROPORTION OF COMBINED VANADIUM BEING IN THE FORM OF V2C AND THE ATOMIC RATIO OF VANADIUM TO CARBON BEING IN THE RANGE OF 1.49 TO 2.42.
References Cited (Backward Citations)
US3013875A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-07 | 1971-02-06 | 1971-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-07 | 1975-02-06 | 1975-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-07 | 1979-02-06 | 1979-08-08 | $7700.00 | Window Closed / Lapsed |