US2837487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resistor enamel and resistor made therefrom
Assignee: EIDP Inc
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Filing: 1956-01-25
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Granted: 1958-06-03
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Expires: 1976-01-25
Abstract
No abstract record available.
Inventors
- 👤 Huttar Daniel Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:06
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/80; C04B41/81; C04B41/85; C04B41/88; C04B41/45; C04B41/50; C04B41/51; C04B41/5116; H; H01; H01C; H01C17/00; H01C17/06; H01C17/065; H01C17/06506; H01C17/06513; H01C17/06553; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49099
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
70 words
A VITREOUS FLUX PASTE ADAPTED TO BE APPLIED TO AND FIRED ON A CERAMIC INSULATING MATERIAL TO PRODUCE AN ELECTRIC RESISTOR OF SUBSTANTIALLY UNIFORM RESISTANCE VALUE COMPRISING A VITEROUS FLUX COMPRISING 10% TO 25% POWDERED VITEROUS METAL BOROSILICATE, 3% RO 26% FINELY DIVIDED SILVER 0% TO 25% FINELY DIVIDED CURPIC OXIDE, AND 29% TO 87% CUPROUS OXIDE, TOGETHER WITH SUFFICIENT LIQUID VEHICLE TO FORM A PASTE WITH SAID FLUX COMPONENTS.
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) | 1961-06-02 | 1961-12-02 | 1962-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-02 | 1965-12-02 | 1966-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-02 | 1969-12-02 | 1970-06-03 | $7700.00 | Window Closed / Lapsed |