US3079282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printed circuit on a ceramic base and method of making same
Assignee: Individual
•
Filing: 1960-05-24
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Granted: 1963-02-26
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Expires: 1980-05-24
Abstract
No abstract record available.
Inventors
- 👤 Martin N Halier
- 👤 Charles J Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:11
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/80; C04B41/81; C04B41/85; C04B41/88; C04B41/009; C04B41/45; C04B41/50; C04B41/51; C04B41/5116; H; H05; H05K; H05K1/00; H05K1/02; H05K1/09; H05K1/092; C04B2111/00; C04B2111/00474; C04B2111/00844; Y; Y10; Y10S; Y10S428/00; Y10S428/901; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24917; Y10T428/31504; Y10T428/31678
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A METHOD FOR APPLYING AN ELECTRICALLY CONDUCTIVE PRINTED CIRCUIT TO A CERAMIC BASE WHEREIN SAID CERAMIC BASE IS SELECTED FROM THE GROUP CONSISTING OF ALUMINA AND FORSTERITE CONSISTING ESSENTIALLY OF THE STEPS OF FORMING A PASTE BY MIXING A METAL POWDER WITH AN AMOUNT OF VOLATILE OIL SUFFICIENT TO FORM SAID PASTE, SAID METAL POWDER CONSISTING OF A MIXTURE OF ABOUT 5 PERCENT BY WEIGHT TO 90 PERCENT BY WEIGHT OF FINELY DIVIDED SILVER AND THE BALANCE SUBSTANTIALLY ALL FINELY DIVIDED PLATINUM, APPLYING SAID PASTE TO SAID CERAMIC BASE IN A PREDETERMINED PATTERN, DRYING SAID PASTE BY HEATING THE SAME TO A TEMPERATURE OF ABOUT 100* C. IN ORDER TO VOLATILIZED SAID OIL, FIRING SAID CERAMIC BASE IN AIR AT A TEMPERATURE OF FROM ABOUT 1000*C. TO 1500*C IN ORDER TO BOND SAID PASTE TO SAID CERAMIC BASE, AND SUBSEQUENTLY COOLING SAID BONDED CERAMIC BASE TO ROOM TEMPERATURE.
Claim 2
Independent Claim
148 words
A METHOD FOR APPLYING AN ELECTRICALLY CONDUCTIVE PRINTED CIRCUIT TO A CERAMIC BASE WHEREIN SAID CERAMIC BASE IS SELECTED FROM THE GROUP CONSISTING OF ALUMINA AND FORSTERITE CONSISTING ESSENTIALLY OF THE STEPS OF FORMING A PASTE BY MIXING A METAL POWDER WITH AN AMOUNT OF VOLATILE OIL SUFFICIENT TO FORM SAID PASTE, SAID METAL POWDER CONSISTING OF A MIXTURE OF ABOUT 5 PERCENT BY WEIGHT TO 90 PERCENT BY WEIGHT OF FINELY DIVIDED SILVER AND THE BALANCE SUBSTANTIALLY ALL FINELY DIVIDED PLATINUM, APPLYING SAID PASTE TO SAID CERAMIC BASE IN A PREDETERMINED PATTERN, DRYING SAID PASTE BY HEATING THE SAME TO A TEMPERATURE OF ABOUT 100* C. IN ORDER TO VOLATILIZED SAID OIL, FIRING SAID CERAMIC BASE IN AIR AT A TEMPERATURE OF FROM ABOUT 1000*C. TO 1500*C IN ORDER TO BOND SAID PASTE TO SAID CERAMIC BASE, AND SUBSEQUENTLY COOLING SAID BONDED CERAMIC BASE TO ROOM TEMPERATURE.
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) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |