US3565682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic electrical resistors containing pdm02,where m is co,cr,rh or cr/rh
Assignee: EIDP Inc
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Filing: 1969-09-25
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Granted: 1971-02-23
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Expires: 1989-09-25
Abstract
Abstract PALLADIUM OXIDES OF THE FORMULA PDMO2, WHEREIN M IS COBALT, CHROMIUM, RHODIUM, OR A MIXTURE OF CHROMIUM WITH RHODIUM, CAN BE MIXED WITH A VITREOUS ENAMEL OR GLASS FRIT AND OPTIONALLY WITH OTHER ADDITIVES TO FORM CERAMIC ELECTRICAL RESISTOR COMPOSITIONS. SUCH COMPOSITIONS ARE APPLIED TO A CERAMIC DIELECTRIC SUBSTRATE AND FIRED, FORMING THE CONDUCTIVE COATING OF A CERAMIC ELECTRICAL RESISTOR.
Inventors
- 👤 Donald B Rogers
- 👤 Robert D Shannon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:18
CPC Classifications
H; H01; H01C; H01C17/00; H01C17/06; H01C17/065; H01C17/06506; H01C17/06513; H01C17/06533; H01C17/0654
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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |