US3673038A
Expired / Lapsed
US
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Method for brazing graphite and other refractory materials
Assignee: United States Atomic Energy Commission
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Filing: 1970-04-14
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Granted: 1972-06-27
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Expires: 1990-04-14
Abstract
Abstract THE PRESENT INVENTION IS DIRECTED TO A NOVEL CLASS OF TITANIUM-VANADIUM-CHDROMIUM ALLOYS WHICH ARE PARTICULARLY USEFUL IN BRAZING GRAPHITE AND OTHER REFRACTORY MATERIALS TO THEMSELVES AND TO EACH OTHER, AND TO THE RESULTANT BRAZED COMPOSITES. WITHIN THE CONTEXT OF THIS INVENTION, THE REFRACTORY MATERIALS WHICH CAN BE JOINED BY THE HEREINAFTER-DEFINED BRAZING ALLOY ARE SELECTED FROM SUCH MATERIALS AS TUNGSTEN, MOLYBDENUM, TANTALUM, RHENIUM, NIOBIUM, ALLOYS THEREOF, AND GRAPHITE.
Inventors
- 👤 Domenic A Canonico
- 👤 Nancy C Cole
- 👤 Clarence W Houck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:26
CPC Classifications
C; C04; C04B; C04B37/00; C04B37/003; C04B37/006; B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/32; B23K35/325; C04B2235/00; C04B2235/65; C04B2235/656; C04B2235/6567; C04B2237/00; C04B2237/02; C04B2237/12; C04B2237/122; C04B2237/126; C04B2237/127; C04B2237/30; C04B2237/32; C04B2237/34; C04B2237/343; C04B2237/36; C04B2237/363; C04B2237/40; C04B2237/403; C04B2237/50; C04B2237/70; C04B2237/708; Y; Y10; Y10S; Y10S376/00; Y10S376/90; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12625; Y10T428/12771; Y10T428/12778; Y10T428/12806; Y10T428/12812; Y10T428/30; Y10T428/31504; Y10T428/31536; Y10T428/31678
Claims Analysis
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References Cited (Backward Citations)
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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) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |