Patent US3843379A successfully refreshed from Google Patents.
US3843379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gold powder
Assignee: OI Glass Inc
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Filing: 1972-11-21
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Granted: 1974-10-22
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Expires: 1992-11-21
Abstract
Abstract 1. A PRINTING PASTE USEFUL FOR PRINTING A MICROELECTRONIC CONDUCTOR COMPRISING A GLASS BINDER, A LIQUID ORGANIC VEHICLE AND GOLD POWDER PARTICLES COATED WITH AN EMULSIFYING AGENT WHICH PREVENTS COALESCENCE AND COLDWELDING OF THE GOLD POWDER PARTICLES IN SAID PASTE AND IS CAPABLE OF BEING BURNED OFF DURING THE CONVENTIONAL FIRING OF THE PASTE TO THICK FILM FORM, SAID PARTICLES HAVING A BULK DENSITY GREATER THAN 5 GRAMS PER CUBIC CENTIMETER AND AN AVERAGE PARTICLE SIZE OF LESS THAN ABOUT 20 MICRONS.
Inventors
- 👤 V Daiga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:30
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/14; H01B1/16; C; C09; C09C; C09C1/00; C09C1/62; C22; C22B; C22B11/00; C22B11/04; C01; C01P; C01P2004/00; C01P2004/51; C01P2004/60; C01P2004/61; C01P2004/62; C01P2004/80; C01P2006/00; C01P2006/10; H05; H05K; H05K1/00; H05K1/02; H05K1/09; H05K1/092
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A PRINTING PASTE USEFUL FOR PRINTING A MICROELECTRONIC CONDUCTOR COMPRISING A GLASS BINDER, A LIQUID ORGANIC VEHICLE AND GOLD POWDER PARTICLES COATED WITH AN EMULSIFYING AGENT WHICH PREVENTS COALESCENCE AND COLDWELDING OF THE GOLD POWDER PARTICLES IN SAID PASTE AND IS CAPABLE OF BEING BURNED OFF DURING THE CONVENTIONAL FIRING OF THE PASTE TO THICK FILM FORM, SAID PARTICLES HAVING A BULK DENSITY GREATER THAN 5 GRAMS PER CUBIC CENTIMETER AND AN AVERAGE PARTICLE SIZE OF LESS THAN ABOUT 20 MICRONS.
Claim 2
Dependent Claim
81 words
A PRINTING PASTE USEFUL FOR PRINTING A MICROELECTRONIC CONDUCTOR COMPRISING A GLASS BINDER, A LIQUID ORGANIC VEHICLE AND GOLD POWDER PARTICLES COATED WITH AN EMULSIFYING AGENT WHICH PREVENTS COALESCENCE AND COLDWELDING OF THE GOLD POWDER PARTICLES IN SAID PASTE AND IS CAPABLE OF BEING BURNED OFF DURING THE CONVENTIONAL FIRING OF THE PASTE TO THICK FILM FORM, SAID PARTICLES HAVING A BULK DENSITY GREATER THAN 5 GRAMS PER CUBIC CENTIMETER AND AN AVERAGE PARTICLE SIZE OF LESS THAN ABOUT 20 MICRONS.
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) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |