Sintered ceramic bodies with porous portions
Abstract
Abstract A SINTERED CERAMIC ARTICLE WHICH COMPRISES INTERNAL ELECTRODES AND/OR CONDUCTORS IS FORMED BY PRODUCING A SINTERED CERAMIC BODY THAT HAS AREAS OF CERAMIC WITH INTERCONNECTED PORES EXTENDING TO AN OUTER FACE THEREOF AND PROVIDING A CONDUCTOR IN SAID POROUS AREAS. THE CERAMIC BODY MAY BE FORMED BY DEPOSITING, AS BY SCRREN PRINTING, ON SHEETS OF A POWDERED DIELECTRIC OR INSULATING CERAMIC MATERIAL BONDED WITH A TEMPORARY BOND, AN AREA OF A TEMPORARILY BONDED POWDERED CERAMIC MATERIAL WHICH ON FIRING BECOMES POROUS, CONSOLIDATING A PLURALITY OF SURFACE SHEETS. AND SINTERING THEM. SUBSEQUENTLY A CONDUCTIVE MATERIAL MAY BE PROVIDED IN THE POROUS AREAS BY IMPREGNATING SAID AREAS WITH A CONDUCTIVE MATERIAL OR WITH A MATERIAL WHICH IS REACTED OR DECOMPOSED TO FORM A CONDUCTIVE MATERIAL IN SAID AREAS.
Inventors
- 👤 T Rutt
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-12 | 1978-02-11 | 1978-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-12 | 1982-02-11 | 1982-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-12 | 1986-02-11 | 1986-08-13 | $7700.00 | Window Closed / Lapsed |