US3709722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for accreting molten copper on a moving core member
Assignee: Kennecott Utah Copper LLC
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Filing: 1971-04-07
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Granted: 1973-01-09
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Expires: 1991-04-07
Abstract
Abstract THIS PATENT RELATES TO AN IMOROVEMENT IN THE CONTINUOUS CASTING DIP FORMING PROCESS. IN THE DIP FORMING PROCESS FOR MAKING WIRE ROD A CORE MEMBER IS PASSED UPWARDLY THROUGH A CRUCIBLE CONTAINING A MOLTENT METAL. THE CRUCIBLE CONTAINS A NOZZLE OR BUSHING THROUGH WHICH THE CORE MEM- BER PASSES AT A RELATIVELY HIGH RATE. CONSTRUCTION MATERIALS FOR THIS NOZZLE OR BUSHING ELEMENT ARE CRITICAL IN OBTAINING HIGH QUALITY WIRE ROD.
Inventors
- 👤 D Corrigan
- 👤 I Servi
- 👤 C Wang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:23
CPC Classifications
C; C23; C23C; C23C2/00; C23C2/003; C23C2/0035; C23C2/0036; C23C2/00361; C23C2/0038; C23C2/34; C23C2/36; C23C2/38
Claims Analysis
Total Claims: 0
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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) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |