Patent US2342231A successfully refreshed from Google Patents.
Patent US2747260A successfully refreshed from Google Patents.
US2747260A
Expired / Lapsed
US
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Metal-ceramic materials and method of making same
Assignee: Duracell Inc USA
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Filing: 1952-02-26
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Granted: 1956-05-29
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Expires: 1972-02-26
Abstract
No abstract record available.
Inventors
- 👤 George M Carlton
- 👤 Lee S Busch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:19
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/515; C04B35/58; C04B35/58085; C04B35/58092; C04B35/01; C04B35/08; C04B35/10; C04B35/111; C04B35/117; C04B35/12; C04B35/14; C04B35/48; C04B35/486; C04B35/488; C04B35/622; C04B35/626; C04B35/63; C04B35/6303; Y; Y10; Y10S; Y10S264/00; Y10S264/36
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
106 words
THE METHOD OF MAKING METAL-CERAMIC BODIES WHICH COMPRISES BRINGING, AN INTERMETALLIC CONSTITUENT OF MOLYBDENUM DISILICIDE INTO A CONTACT WITH A FINELY DIVIDED CERAMIC CONSTITUENT ESSENTIALLY CONSISTING OF A REFRACTORY OXIDE SELECTED FROM THE GROUP CONSISTING OF THE OXIDES OF ALUMINUM, ZIRCONIUM, CHROMIUM, SILICON AND BERYLLIUM AND WITH A FIXING AMOUNT OF AN ALKALINE EARTH METAL COMPOUND, AND HEATING THE CONSTITUENTS TO A TEMPERATURE SUFFICIENT TO CAUSE BONDING THEREOF AND THE FORMATION OF AN INTEGRAL METAL-CERAMIC BODY IN WHICH SAID CONSTITUENTS ARE UNIFORMLY DISTRIBUTED, THE RELATIVE PROPORTION OF SAID CONSTITUENTS BEING SO DETERMINED THAT THE INTERMETALLIC CONSTITUENT FORMS BETWEEN 10% AND 90% BY VOLUME OF THE BODY.
Claim 2
Independent Claim
106 words
THE METHOD OF MAKING METAL-CERAMIC BODIES WHICH COMPRISES BRINGING, AN INTERMETALLIC CONSTITUENT OF MOLYBDENUM DISILICIDE INTO A CONTACT WITH A FINELY DIVIDED CERAMIC CONSTITUENT ESSENTIALLY CONSISTING OF A REFRACTORY OXIDE SELECTED FROM THE GROUP CONSISTING OF THE OXIDES OF ALUMINUM, ZIRCONIUM, CHROMIUM, SILICON AND BERYLLIUM AND WITH A FIXING AMOUNT OF AN ALKALINE EARTH METAL COMPOUND, AND HEATING THE CONSTITUENTS TO A TEMPERATURE SUFFICIENT TO CAUSE BONDING THEREOF AND THE FORMATION OF AN INTEGRAL METAL-CERAMIC BODY IN WHICH SAID CONSTITUENTS ARE UNIFORMLY DISTRIBUTED, THE RELATIVE PROPORTION OF SAID CONSTITUENTS BEING SO DETERMINED THAT THE INTERMETALLIC CONSTITUENT FORMS BETWEEN 10% AND 90% BY VOLUME OF THE BODY.
Claim 3
Dependent Claim
15 words
A METAL-CERAMIC BODY CONSISTING OF ABOUT 77.7% MOSI1, ABOUT 21.5% AL2O3, AND ABOUT 0.8% CAO.
Claim 4
Dependent Claim
15 words
A METAL-CERAMIC BODY CONSISTING OF ABOUT 77.7% MOSI1, ABOUT 21.5% AL2O3, AND ABOUT 0.8% CAO.
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) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |