US3741780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallizing compositions containing bismuthate glass-ceramic conductor binder
Assignee: EIDP Inc
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Filing: 1972-01-12
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Granted: 1973-06-26
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Expires: 1992-01-12
Abstract
Abstract METALLIZING COMPOSITION FOR SCREEN PRINTING CIRCUITS ONTO CERAMIC SUBSTRATES WHICH CONSISTS ESSENTIALLY OF, BY WEIGHT, (A) 3-15% OF A FINELY DIVIDED POWDER OF SUCH GLASS-CERAMIC PRECURSORS AS A BINDER AND (B) 85-97% OF A FINELY DIVIDED NOBLE METAL POWDER. DIELECTRIC CERAMIC SUBSTRATES HAVING PRINTED AND FIRED THEREON SUCH METALLIZING COMPOSITIONS.
Inventors
- 👤 L Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:32
CPC Classifications
H; H05; H05K; H05K1/00; H05K1/02; H05K1/09; H05K1/092; C; C03; C03C; C03C10/00; C03C10/0054; C03C4/00; C03C8/00; C03C8/02; C03C8/10
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) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |