Patent US4462827A successfully refreshed from Google Patents.
US4462827A
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US
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Thick film silver metallization composition
Assignee: EIDP Inc
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Filing: 1982-11-19
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Granted: 1984-07-31
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Expires: 2002-11-19
Abstract
Abstract Paste composition for metal surface metallization containing 65 to 95% by weight silver and 5 to 35% by weight cadmium/antimony alloy dispersed in a liquid vehicle.
Inventors
- 👤 Joseph R. Rellick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:20
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/22; H05K3/24; H05K3/245; H05K3/247; H05K3/248; C; C23; C23C; C23C24/00; C23C24/08; C23C24/10; C23C24/103; C23C24/106; H01; H01B; H01B1/00; H01B1/02; H05K3/02; H05K3/06
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
66 words
Thick film silver composition suitable for metal surface metallization comprising: 65 to 95% by weight of silver particles, and 5 to 35% by weight of particles of an alloy of cadmium and antimony having an antimony content of 25-80% by weight, the weights based on the total inorganic solids present, the solids being dispersed in a vehicle in a concentration sufficient to make a printable paste.
Claim 2
Dependent Claim
66 words
Thick film silver composition suitable for metal surface metallization comprising: 65 to 95% by weight of silver particles, and 5 to 35% by weight of particles of an alloy of cadmium and antimony having an antimony content of 25-80% by weight, the weights based on the total inorganic solids present, the solids being dispersed in a vehicle in a concentration sufficient to make a printable paste.
Claim 3
Dependent Claim
27 words
A composition according to claim 1 wherein the silver particle content is 75 to 90% by weight and the cadmium/antimony content is 10 to 25% by weight.
Claim 4
Dependent Claim
27 words
A composition according to claim 1 wherein the silver particle content is 82 to 88% by weight and the cadmium/antimony content is 12 to 18% by weight.
Claim 5
Dependent Claim
27 words
A screen printable paste comprising 60 to 95% by weight of the inorganic solids of claim 1 dispersed in 5 to 40% by weight of a vehicle.
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) | 1987-07-31 | 1988-01-30 | 1988-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-31 | 1992-01-30 | 1992-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-31 | 1996-01-30 | 1996-07-31 | $7700.00 | Window Closed / Lapsed |