US2671955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite metal-ceramic body and method of making the same
Assignee: Duracell Inc USA
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Filing: 1950-12-14
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Granted: 1954-03-16
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Expires: 1970-12-14
Abstract
No abstract record available.
Inventors
- 👤 Ralph O Grubel
- 👤 Lee S Busch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:45
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/10; C22C1/1036; Y; Y10; Y10S; Y10S264/00; Y10S264/36; Y10T; Y10T428/00; Y10T428/12; Y10T428/12007; Y10T428/12014; Y10T428/12028; Y10T428/1216
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A COMPOSITE BODY HAVING A RELATIVELY BRITTLE PORTION AND A RELATIVELY DUCTILE PORTION COMPRISING A SPONGE OF REFRACTORY METAL CONSTITUTING A CONTINUOUS MATRIX A HIGH THERMAL AND ELECTRICAL CONDUCTIVITY, CERAMIC MATERIAL ESSENTIALLY COMPOSED OF METAL OXIDES AND HAVING A MELTING POINT LOWER THAN THAT OF THE SPONGE METAL SUBSTANTIALLY FILLING OUT THE VOIDS OF A PORTION OF SAID MATRIX AND FUSION-BONDED THERETO, AND DUCTILE
Claim 2
Dependent Claim
64 words
A COMPOSITE BODY HAVING A RELATIVELY BRITTLE PORTION AND A RELATIVELY DUCTILE PORTION COMPRISING A SPONGE OF REFRACTORY METAL CONSTITUTING A CONTINUOUS MATRIX A HIGH THERMAL AND ELECTRICAL CONDUCTIVITY, CERAMIC MATERIAL ESSENTIALLY COMPOSED OF METAL OXIDES AND HAVING A MELTING POINT LOWER THAN THAT OF THE SPONGE METAL SUBSTANTIALLY FILLING OUT THE VOIDS OF A PORTION OF SAID MATRIX AND FUSION-BONDED THERETO, AND DUCTILE
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) | 1957-03-15 | 1957-09-14 | 1958-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-15 | 1961-09-14 | 1962-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-15 | 1965-09-14 | 1966-03-16 | $7700.00 | Window Closed / Lapsed |