Patent US5010053A successfully refreshed from Google Patents.
US5010053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of bonding metals to ceramics
Assignee: Arch Development Corp
•
Filing: 1988-12-19
•
Granted: 1991-04-23
•
Expires: 2008-12-19
Abstract
Abstract A ceramic or glass having a thin layer of silver, gold or alloys thereof at the surface thereof. A first metal is bonded to the thin layer and a second metal is bonded to the first metal. The first metal is selected from the class consisting of In, Ga, Sn, Bi, Zn, Cd, Pb, Tl and alloys thereof, and the second metal is selected from the class consisting of Cu, Al, Pb, An and alloys thereof.
Inventors
- 👤 Victor A. Maroni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:16
CPC Classifications
H; H10; H10N; H10N60/00; H10N60/01; H10N60/0268; H10N60/0801; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/93; Y10S505/00; Y10S505/70; Y10S505/704; Y10S505/725; Y10S505/739; Y10S505/74; Y10T; Y10T428/00; Y10T428/12; Y10T428/12451; Y10T428/12472; Y10T428/12493; Y10T428/12535; Y10T428/12611; Y10T428/12681; Y10T428/12771; Y10T428/12861; Y10T428/12882
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
47 words
A composite of a ceramic having a layer of Ag or Au present at the surface thereof, a first metal selected from the group consisting of In and alloys thereof bonded to the layer of Ag or Au, and a second metal bonded to the first metal.
Claim 2
Dependent Claim
47 words
A composite of a ceramic having a layer of Ag or Au present at the surface thereof, a first metal selected from the group consisting of In and alloys thereof bonded to the layer of Ag or Au, and a second metal bonded to the first metal.
Claim 3
Dependent Claim
21 words
The composite of claim 1, wherein the layer of Au or Ag is Ag and is greater than about 300 angstroms.
Claim 4
Dependent Claim
19 words
The composite of claim 1, wherein the second metal is selected from Cu, Al, Pb, Zn and alloys thereof.
Claim 5
Dependent Claim
19 words
The composite of claim 1, wherein the second metal is selected from Cu, Al Pb, Zn and alloys thereof.
Claim 6
Dependent Claim
17 words
The composite of claim 2, wherein the ceramic has zero resistivity and complete diamagnetism at superconducting temperatures.
Claim 7
Dependent Claim
16 words
The composite of claim 3, wherein the second metal is Cu, Al or an alloy thereof.
Claim 8
Dependent Claim
16 words
The composite of claim 4, wherein the second metal is Cu, Al or an alloy thereof.
Claim 9
Dependent Claim
95 words
A superconducting oxide ceramic having a thin layer of silver, gold or alloys thereof at the surface thereof, a first metal of In or alloys thereof bonded to the thin layer and a second metal bonded to the first metal, wherein the first metal forms a stable intermetallic phase or solid solution with the silver or gold layer at a temperature less than about 150° C., the first and second meals form a stable intermetallic phase or solid structure at a temperature less than about 150° C. and the second metal is an electrical conductor.
Claim 10
Dependent Claim
95 words
A superconducting oxide ceramic having a thin layer of silver, gold or alloys thereof at the surface thereof, a first metal of In or alloys thereof bonded to the thin layer and a second metal bonded to the first metal, wherein the first metal forms a stable intermetallic phase or solid solution with the silver or gold layer at a temperature less than about 150° C., the first and second meals form a stable intermetallic phase or solid structure at a temperature less than about 150° C. and the second metal is an electrical conductor.
Claim 11
Dependent Claim
13 words
The oxide ceramic of claim 8, wherein said ceramic is an elongated strand.
Claim 12
Dependent Claim
13 words
The oxide ceramic of claim 8, wherein said ceramic is an elongated tape.
Claim 13
Dependent Claim
13 words
The oxide ceramic of claim 8, wherein said ceramic is an elongated wire.
Claim 14
Dependent Claim
43 words
The oxide ceramic of claim 8, wherein the thin layer is silver or an alloy thereof having a thickness not less than about 300 angstroms, and the second metal is selected from the class consisting of Cu, Al, Pb, Zn and alloys thereof.
References Cited (Backward Citations)
US4124736A
Cited
JPS53101686A
Cited
US4517217A
Cited
US4559277A
Cited
US4649085A
Cited
US4826808A
Cited
JPS63284720A
Cited
JPS63307622A
Cited
JPS643900A
Cited
EP0312015A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-04-22 | 1994-10-22 | 1995-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-22 | 1998-10-22 | 1999-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-22 | 2002-10-22 | 2003-04-23 | $7700.00 | Window Closed / Lapsed |