US4857233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nickel particle plating system
Assignee: Potters Industries LLC
•
Filing: 1988-05-26
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Granted: 1989-08-15
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Expires: 2008-05-26
Abstract
Abstract A nickel particle plating system in which a multiplicity of minute nickel spheres are provided with a heavy copper coating and then a comparatively thin silver coating. The copper coating is at least about 20 percent by weight of the shpere, and the silver coating has a maximum thickness of about 15 percent of the sphere diameter. The coated spheres are deposited in a nonconductive matrix to form an electroconductive body in which the spheres may be placed along conductive paths.
Inventors
- 👤 Robert J. Teichmann
- 👤 James F. Walther
- 👤 Mulhall Robert C.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:17
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/02; B; B22; B22F; B22F1/00; B22F1/17; C; C08; C08K; C08K9/00; C08K9/02; H01B1/026; H01B1/14; H01B1/16; H01B1/20; H01B1/22; H05; H05K; H05K1/00; H05K1/02; H05K1/09; H05K1/092; H05K1/095; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12181
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
84 words
A particulate material for an electroconductive body, the material comprising, in combination: a multiplicity of nickel particles having an average particle size of from 10 to 500 microns in maximum dimension; a copper-containing coating on each of the nickel particles, the copper-containing coating on each particle being at least about 20 percent by weight of the particle; and a coating of noble metal surrounding the copper coating on each particle and having a maximum thickness of about 15 percent of the maximum particle dimension.
Claim 2
Dependent Claim
84 words
A particulate material for an electroconductive body, the material comprising, in combination: a multiplicity of nickel particles having an average particle size of from 10 to 500 microns in maximum dimension; a copper-containing coating on each of the nickel particles, the copper-containing coating on each particle being at least about 20 percent by weight of the particle; and a coating of noble metal surrounding the copper coating on each particle and having a maximum thickness of about 15 percent of the maximum particle dimension.
Claim 3
Dependent Claim
82 words
A particulate material for an electroconductive body, the material comprising, in combination: a multiplicity of nickel particles having an average particle size of from 10 to 500 microns in maximum dimension; a copper-containing coating on each of the nickel particles, the copper-containing coating on each particle being at least about 20 percent by weight of the particle; and a silver coating surrounding the copper coating on each particle and having a maximum thickness of about 15 percent of the maximum particle dimension.
Claim 4
Dependent Claim
82 words
A particulate material for an electroconductive body, the material comprising, in combination: a multiplicity of nickel particles having an average particle size of from 10 to 500 microns in maximum dimension; a copper-containing coating on each of the nickel particles, the copper-containing coating on each particle being at least about 20 percent by weight of the particle; and a silver coating surrounding the copper coating on each particle and having a maximum thickness of about 15 percent of the maximum particle dimension.
Claim 5
Dependent Claim
30 words
A particulate material as defined in claim 2, in which the silver coating on each particle is between about 0.1 percent and about 25 percent by weight of the particle.
Claim 6
Dependent Claim
81 words
A particulate material for an electroconductive body, the material comprising, in combination: a multiplicity of nickel particles having an average particle size of from 10 to 500 microns in maximum dimension; a copper coating on each of the nickel particles, the copper on each particle being at least about 50 percent by weight of the particle; and a silver coating surrounding the copper coating on each particle and having a maximum thickness of about 15 percent of the maximum particle dimension.
Claim 7
Dependent Claim
81 words
A particulate material for an electroconductive body, the material comprising, in combination: a multiplicity of nickel particles having an average particle size of from 10 to 500 microns in maximum dimension; a copper coating on each of the nickel particles, the copper on each particle being at least about 50 percent by weight of the particle; and a silver coating surrounding the copper coating on each particle and having a maximum thickness of about 15 percent of the maximum particle dimension.
Claim 8
Dependent Claim
24 words
A particulate material as defined in claim 4, in which the minimum thickness of the silver coating on each particle is about 300 angstroms.
Claim 9
Dependent Claim
28 words
A particulate material as defined in claim 4 in which the thickness of the copper coating on each particle is between about 7.8 microns and about 61.0 microns.
Claim 10
Dependent Claim
83 words
An electroconductive body comprising, in combination: a nonconductive matrix; a multiplicity of nickel particles embedded in the matrix and having an average particle size of from 10 to 500 microns in maximum dimension; a copper coating on each of the nickel particles, the copper on each particle being at least about 50 percent by weight of the particle; and a silver coating surrounding the copper coating on each particle and having a maximum thickness of about 15 percent of the maximum particle dimension.
Claim 11
Dependent Claim
83 words
An electroconductive body comprising, in combination: a nonconductive matrix; a multiplicity of nickel particles embedded in the matrix and having an average particle size of from 10 to 500 microns in maximum dimension; a copper coating on each of the nickel particles, the copper on each particle being at least about 50 percent by weight of the particle; and a silver coating surrounding the copper coating on each particle and having a maximum thickness of about 15 percent of the maximum particle dimension.
Claim 12
Dependent Claim
28 words
An electroconductive body as defined in claim 7, in which the coated particles embedded in the matrix constitute at least about 15 percent by weight of the matrix.
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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) | 1992-08-14 | 1993-02-13 | 1993-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-08-14 | 1997-02-13 | 1997-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-08-14 | 2001-02-13 | 2001-08-15 | $7700.00 | Window Closed / Lapsed |