US2866700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drip-melting of refractory metals
Assignee: Union Carbide Corp
•
Filing: 1954-05-04
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Granted: 1958-12-30
•
Expires: 1974-05-04
Abstract
No abstract record available.
Inventors
- 👤 William J Bohnet
- 👤 Glen D Bagley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:04
CPC Classifications
C; C22; C22B; C22B34/00; C22B34/10; C22B34/12; C22B34/1295
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A METHOD OF PRODUCING REACTIVE-REFRACTORY METALS IN INGOT FORM, WHICH COMPRISES PROVIDING AN INERT ATMOSPHERE IN A SUITABLE MELTING FURNACE, INTRODUCING PREFORMED BRIQUESTS OF THE REFRACTORY METAL IN SAID FURNACE, SINTERING SAID JUXTAPOSED BRIQUEST S WITHIN SAID FURNACE AND THERE JOINING SAID BRIQUESTS TOGETHER TO FORM A CONTINUOUS ROD OF METAL, AND INDUCTION HEATING THIS ROD SO AS TO FUSE IT.
Claim 2
Independent Claim
61 words
A METHOD OF PRODUCING REACTIVE-REFRACTORY METALS IN INGOT FORM, WHICH COMPRISES PROVIDING AN INERT ATMOSPHERE IN A SUITABLE MELTING FURNACE, INTRODUCING PREFORMED BRIQUESTS OF THE REFRACTORY METAL IN SAID FURNACE, SINTERING SAID JUXTAPOSED BRIQUEST S WITHIN SAID FURNACE AND THERE JOINING SAID BRIQUESTS TOGETHER TO FORM A CONTINUOUS ROD OF METAL, AND INDUCTION HEATING THIS ROD SO AS TO FUSE IT.
References Cited (Backward Citations)
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Cited
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Cited
US2686864A
Cited
US2688169A
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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) | 1961-12-29 | 1962-06-30 | 1962-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-29 | 1966-06-30 | 1966-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-29 | 1970-06-30 | 1970-12-30 | $7700.00 | Window Closed / Lapsed |