Patent US2886476A successfully refreshed from Google Patents.
US2886476A
Expired / Lapsed
US
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Resistors
Assignee: EIDP Inc
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Filing: 1956-10-19
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Granted: 1959-05-12
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Expires: 1976-10-19
Abstract
No abstract record available.
Inventors
- 👤 Dumesnil Maurice Edward
- 👤 Short Oliver Alton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:51
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/14; H01B1/18; Y; Y10; Y10S; Y10S428/00; Y10S428/901; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24917; Y10T428/31504; Y10T428/31844
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
39 words
AN ELECTRIC RESISTOR COMPRISING A CERAMIC INSULATOR AND A FIRED-ON CONDUCTIVE LAYER COMPRISING A VITREOUS FLUX CONTAINING 5 TO 50% OF FINELY DIVIDED CARBON AND 0.5% TO 40% OF ELEMENTAL BORON, BASED ON THE WEIGHT OF THE CONDUCTIVE LAYER.
References Cited (Backward Citations)
US2371211A
Cited
US1978323A
Cited
US2721153A
Cited
US2671735A
Cited
US2679568A
Cited
US2699510A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |