US2945295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High temperature metallic joint
Assignee: Westinghouse Electric Corp
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Filing: 1957-12-20
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Granted: 1960-07-19
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Expires: 1977-12-20
Abstract
No abstract record available.
Inventors
- 👤 Gene R Feaster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:24
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/02; H01J9/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
IN THE PROCESS OF JOINING A POROUS METAL MATRIX MEMBER TO A METALLIC SUPPORT MEMBER IN A THERMIONIC CATHODE SUITABLE FOR USE IN AN ELECTRON DISCHARGE DEVICE, THE STEPS COMPRISING FORMING A MIXTURE CONSISTING ESSENTIALLY OF A THERMALLY REMOVABLE NON-REACTIVE ORGANIC BINDER MATERIAL AND A METALLIC OXIDE SELECTED FROM AT LEAST ONE OF THE GROUP CONSISTING OF THE OXIDES OF NICKEL, COBALT AND IRON, COATING SAID MIXTURE ON AT LEAST ONE OF SAID POROUS METAL MATRIX MEMBER AND SAID SUPPORT MEMBER IN THE AREA WHERE SAID MEMBERS ARE TO BE JOINED.
Claim 2
Dependent Claim
91 words
IN THE PROCESS OF JOINING A POROUS METAL MATRIX MEMBER TO A METALLIC SUPPORT MEMBER IN A THERMIONIC CATHODE SUITABLE FOR USE IN AN ELECTRON DISCHARGE DEVICE, THE STEPS COMPRISING FORMING A MIXTURE CONSISTING ESSENTIALLY OF A THERMALLY REMOVABLE NON-REACTIVE ORGANIC BINDER MATERIAL AND A METALLIC OXIDE SELECTED FROM AT LEAST ONE OF THE GROUP CONSISTING OF THE OXIDES OF NICKEL, COBALT AND IRON, COATING SAID MIXTURE ON AT LEAST ONE OF SAID POROUS METAL MATRIX MEMBER AND SAID SUPPORT MEMBER IN THE AREA WHERE SAID MEMBERS ARE TO BE JOINED.
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) | 1963-07-19 | 1964-01-18 | 1964-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-19 | 1968-01-18 | 1968-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-19 | 1972-01-18 | 1972-07-19 | $7700.00 | Window Closed / Lapsed |