US4013591A
Expired / Lapsed
US
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Composite superconducting materials
Assignee: Brevatome
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Filing: 1974-03-11
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Granted: 1977-03-22
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Expires: 1994-03-11
Abstract
Abstract Composite materials having properties of superconductivity which remain at much higher temperatures than conventional superconductors and intended for such applications as the construction of magnetometers or thermometers are provided in a divided form and in a monocrystalline matrix consisting of semiconducting material with zones of superconductivity formed by microprecipitates of one of the constituents of the semiconducting material.
Inventors
- 👤 Rene Granger
- 👤 Alain Labsley
- 👤 Serge Rolland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:11
CPC Classifications
H; H10; H10N; H10N60/00; H10N60/80; H10N60/85; G; G01; G01K; G01K7/00; G01K7/006; G01K7/36; G01K7/38; G01R; G01R33/00; G01R33/02; G01R33/035; H10N60/10; H10N60/12; Y; Y10; Y10S; Y10S505/00; Y10S505/80; Y10S505/801; Y10S505/802; Y10S505/825; Y10S505/842; Y10S505/843; Y10S505/845
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
36 words
A composite superconducting material comprising in combination, a monocrystalline matrix composed of a semiconductor substance exhibiting superconducting properties, and microprecipitated dispersed within said matrix establishing zones, said microprecipitates constituting a metallic constituent of said semiconductor substance.
Claim 2
Dependent Claim
36 words
A composite superconducting material comprising in combination, a monocrystalline matrix composed of a semiconductor substance exhibiting superconducting properties, and microprecipitated dispersed within said matrix establishing zones, said microprecipitates constituting a metallic constituent of said semiconductor substance.
Claim 3
Dependent Claim
19 words
The material as claimed in claim 1, wherein said zones are localized within grain boundaries of the semiconductor substance.
Claim 4
Dependent Claim
19 words
The material as claimed in claim 1, wherein said semiconductor substance is lead telluride and said microprecipitates are lead.
Claim 5
Dependent Claim
19 words
The material as claimed in claim 1, wherein said semiconductor substance is lead selenide and said microprecipitates are lead.
Claim 6
Dependent Claim
19 words
The material as claimed in claim 1, wherein said semiconductor substance is tin telluride and said microprecipitates are tin.
Claim 7
Dependent Claim
44 words
The material as claimed in claim 1, wherein said semiconductor substance is in alloy of compounds selected from the group consisting of lead telluride, lead selenide, and tin telluride and said microprecipitates are at least one of the metallic constituents of said semiconductor substance.
Claim 8
Dependent Claim
27 words
The material as claimed in claim 1, wherein said semiconductor substance is an alloy of lead telluride and tin telluride and said microprecipitates are lead and tin.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-03-21 | 1980-09-20 | 1981-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-21 | 1984-09-20 | 1985-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-21 | 1988-09-20 | 1989-03-22 | $7700.00 | Window Closed / Lapsed |