US3359632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a thermistor
Assignee: Victory Engineering Corp
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Filing: 1965-02-10
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Granted: 1967-12-26
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Expires: 1985-02-10
Abstract
No abstract record available.
Inventors
- 👤 John G Froemel
- 👤 Sapoff Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:39
CPC Classifications
H; H01; H01C; H01C17/00; H01C17/06; H01C17/065; H01C17/06506; H01B; H01B1/00; H01C7/00; H01C7/04; H01C7/042; H01C7/043; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49099
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A METHOD OF MAKING AN ELECTRICAL RISTANCE ELEMENT WHICH COMPRISES IN COMBINATION THE STEPS OF PROVIDING A METAL OXIDE MATERIAL IN THE FORM OF AT LEAST THREE DISTINCT SIZE-RANGE FRACTIONS DIFFERING FROM EACH OTHER IN SIZE BY THE ORDER OF 0.5 MICRON, THE LARGEST OF SAID THREE SIZERANGE FRACTIONS HAVING AN AVERAGE PARTICLE DIAMETER NOT EXCEEDING ABOUT 1.5 MICRONS, FORMING A FLUID DISPERSION OF SAID METAL OXIDE MATERIAL IN A LIQUID, HIGH-HYDROXYL BINDER VEHICLE, DEPOSITING SAID FLUID DISPERSION ON A FLAT SURFACE, LEVELING SAID DEPOSITED DISPERSION WITH A DOCTORBLADE, DRYING SAID LEVELED DISPERSION, AND FIRING THE DRIED DISPERSION AT A TEMPERATURE AT LEAST EQUAL TO THE SINTERING TEMPERATURE OF SAID METAL OXIDE MATERIAL.
Claim 2
Independent Claim
113 words
A METHOD OF MAKING AN ELECTRICAL RISTANCE ELEMENT WHICH COMPRISES IN COMBINATION THE STEPS OF PROVIDING A METAL OXIDE MATERIAL IN THE FORM OF AT LEAST THREE DISTINCT SIZE-RANGE FRACTIONS DIFFERING FROM EACH OTHER IN SIZE BY THE ORDER OF 0.5 MICRON, THE LARGEST OF SAID THREE SIZERANGE FRACTIONS HAVING AN AVERAGE PARTICLE DIAMETER NOT EXCEEDING ABOUT 1.5 MICRONS, FORMING A FLUID DISPERSION OF SAID METAL OXIDE MATERIAL IN A LIQUID, HIGH-HYDROXYL BINDER VEHICLE, DEPOSITING SAID FLUID DISPERSION ON A FLAT SURFACE, LEVELING SAID DEPOSITED DISPERSION WITH A DOCTORBLADE, DRYING SAID LEVELED DISPERSION, AND FIRING THE DRIED DISPERSION AT A TEMPERATURE AT LEAST EQUAL TO THE SINTERING TEMPERATURE OF SAID METAL OXIDE MATERIAL.
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) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |