US3679439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lead-containing metallizations
Assignee: EIDP Inc
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Filing: 1971-03-23
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Granted: 1972-07-25
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Expires: 1991-03-23
Abstract
Abstract METALLIZING COMPOSITIONS, FOR PRODUCING FIRED-ON COATINGS WHICH HAVE GOOD ELECTRICAL PROPERTIES, COMPRISING NOBLE METALS, AN INORGANIC BINDER AND 1-25% BY WEIGHT OF LEAD. THE METALLIC LEAD IS ADDED TO THE METALLIZING COMPOSITION TO PROVIDE A FIRED METALLIZATION THAT HAS SOLDER WETABILITY AND INCREASED SOLDER LEACH RESISTANCE. THE METALLIZING COMPOSITION ARE USED TO FORM ELECTRODES, MICROCIRCUITRY AND OTHER RELATED ARTICLES IN THE ELECTRONIC INDUSTRY.
Inventors
- 👤 Alvin A Milgram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:04
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/14; H01B1/16; H05; H05K; H05K1/00; H05K1/02; H05K1/09; H05K1/092
Claims Analysis
Total Claims: 0
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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) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |