US2855491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal-ceramic electrical resistors
Assignee: General Electric Co
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Filing: 1954-06-30
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Granted: 1958-10-07
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Expires: 1974-06-30
Abstract
No abstract record available.
Inventors
- 👤 Navias Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:08
CPC Classifications
H; H01; H01C; H01C7/00; H01C7/02; C; C10; C10M; C10M3/00; H01C17/00; H01C17/06; H01C17/065; H01C17/06506; H01C17/06513; H01C17/06526; H01C17/06533; H01C7/022; C10M2201/00; C10M2201/02; C10M2209/00; C10M2209/02; C10M2209/04; C10M2209/06; C10M2209/062; C10M2209/10; C10M2211/00; C10M2211/02; C10M2211/022; C10M2211/06; C10N; C10N2040/00; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/50; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49101
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
AN ELECTRICAL RESISTANCE ELEMENT CONSISTING ESSENTIALLY OF A FIRED BODY OF A CERAMIC SELECTED FROM THE GROUP CONSISTING OF KAOLIN AND ALUMINA PROVIDING A MATRIX WHICH CONTAINS FROM ABOUT 35 WEIGHT PERCENT TO ABOUT 70 WEIGHT PERCENT OF A FINELY DIVIDED, SUBSTANTIALLY EVEN DISPERSION OF A METAL SELECTED FROM THE GROUP CONSITING OF TUNGSTEN AND MOLYBDENUM AND MIXTURES THEREOF.
Claim 2
Dependent Claim
59 words
AN ELECTRICAL RESISTANCE ELEMENT CONSISTING ESSENTIALLY OF A FIRED BODY OF A CERAMIC SELECTED FROM THE GROUP CONSISTING OF KAOLIN AND ALUMINA PROVIDING A MATRIX WHICH CONTAINS FROM ABOUT 35 WEIGHT PERCENT TO ABOUT 70 WEIGHT PERCENT OF A FINELY DIVIDED, SUBSTANTIALLY EVEN DISPERSION OF A METAL SELECTED FROM THE GROUP CONSITING OF TUNGSTEN AND MOLYBDENUM AND MIXTURES THEREOF.
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) | 1961-10-06 | 1962-04-07 | 1962-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-06 | 1966-04-07 | 1966-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-06 | 1970-04-07 | 1970-10-07 | $7700.00 | Window Closed / Lapsed |