US3019137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing electrical resistances and articles resulting therefrom
Assignee: Societe dElectronique et dAutomatisme SA
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Filing: 1957-01-25
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Granted: 1962-01-30
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Expires: 1977-01-25
Abstract
No abstract record available.
Inventors
- 👤 Haniet Jacques Marie Noel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:46
CPC Classifications
H; H01; H01C; H01C17/00; H01C17/06; H01C17/075; H01C17/14; C; C23; C23C; C23C16/00; C23C16/22; C23C16/30; C23C16/34; C23C16/40; C23C16/401; C23C16/405; H01B; H01B1/00; H01C7/00; H01C7/006; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
A METHOD OF PRODUCING ELECTRICAL RESISTOR ELEMENTS HAVING A HIGHLY ACCURATE, PREDETERMINED RESISTIVITY AND TEMPERATURE COEFFICIENT AND A HIGH DEGREE OF SURFACE HARDNESS WHICH COMPRISES MIXING INTO A HOMOGENOUS STREAM CONTROLLED AMOUNTS OF VAPORS OF THE HALIDES OF AT LEAST TWO SEPARATE CHEMICAL ELEMENTS, ONE IF THE COMPONENTS OF SAID STREAM CONSTITUTING AT LEAST 90% BY WEIGHT OF THE STREAM AND BEING A HALIDE OF AN ELEMENT SELECTED FROM THE GROUP CONSISTING OF TIN, SILICON AND TITANIUM, THE REMAINDER OF SAID STREAM BEING A MINOR COMPONENT SELECTED FROM THE GROUP CONSISTING OF THE HALIDES OF NIOBIUM, BISMUTH, HAFNIUM, TANTALUM, TUNGSTEN, ZINC, NICKEL, COPPER AND VANADIUM, CARRYING SAID MIXTURE OF VAPORIZED HALIDES INTO A GASEOUS STREAM COMPRISED OF AN INERT CARRIER GAS AND A REACTIVE GAS SELECTED FROM THE GROUP CONSISTING OF WATER VAPOR, OXYGEN AND AMMONIA, AND MIXTURES THEREOF, CONTACTING THE RESULTING GASEOUS MIXTURE STREAM WITH A DIELECTRIC BASE HEATED TO A TEMPERATURE HIGH ENOUGH PYROLYTICALLY TO DECOMPOSE SAID HALIDES INTO HALOGEN AND THE FREE ELEMENT AND CAUSE SAID REACTIVE GAS
Claim 2
Independent Claim
171 words
A METHOD OF PRODUCING ELECTRICAL RESISTOR ELEMENTS HAVING A HIGHLY ACCURATE, PREDETERMINED RESISTIVITY AND TEMPERATURE COEFFICIENT AND A HIGH DEGREE OF SURFACE HARDNESS WHICH COMPRISES MIXING INTO A HOMOGENOUS STREAM CONTROLLED AMOUNTS OF VAPORS OF THE HALIDES OF AT LEAST TWO SEPARATE CHEMICAL ELEMENTS, ONE IF THE COMPONENTS OF SAID STREAM CONSTITUTING AT LEAST 90% BY WEIGHT OF THE STREAM AND BEING A HALIDE OF AN ELEMENT SELECTED FROM THE GROUP CONSISTING OF TIN, SILICON AND TITANIUM, THE REMAINDER OF SAID STREAM BEING A MINOR COMPONENT SELECTED FROM THE GROUP CONSISTING OF THE HALIDES OF NIOBIUM, BISMUTH, HAFNIUM, TANTALUM, TUNGSTEN, ZINC, NICKEL, COPPER AND VANADIUM, CARRYING SAID MIXTURE OF VAPORIZED HALIDES INTO A GASEOUS STREAM COMPRISED OF AN INERT CARRIER GAS AND A REACTIVE GAS SELECTED FROM THE GROUP CONSISTING OF WATER VAPOR, OXYGEN AND AMMONIA, AND MIXTURES THEREOF, CONTACTING THE RESULTING GASEOUS MIXTURE STREAM WITH A DIELECTRIC BASE HEATED TO A TEMPERATURE HIGH ENOUGH PYROLYTICALLY TO DECOMPOSE SAID HALIDES INTO HALOGEN AND THE FREE ELEMENT AND CAUSE SAID REACTIVE GAS
References Cited (Backward Citations)
US448915A
Cited
US1497417A
Cited
US1891235A
Cited
US2556991A
Cited
US2552626A
Cited
US2551341A
Cited
US2764510A
Cited
US2798140A
Cited
US2784115A
Cited
US2859132A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-29 | 1965-07-31 | 1966-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-29 | 1969-07-31 | 1970-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-29 | 1973-07-31 | 1974-01-30 | $7700.00 | Window Closed / Lapsed |