US3170966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of voltage dependent resistances
Assignee: Individual
•
Filing: 1962-02-01
•
Granted: 1965-02-23
•
Expires: 1982-02-01
Abstract
No abstract record available.
Inventors
- 👤 Kemeny Janos
- 👤 Cosnuau Bernard
- 👤 Jelensperger Maurice
- 👤 Konyevits Ferencz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:54
CPC Classifications
H; H01; H01C; H01C7/00; H01C7/10; H01C7/105; H01C7/118; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49087; Y10T29/49089
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A METHOD OF MAKING A NON-LINEAR ELECTRIC RESISTOR DISPOSED IN A METALLIC CASING WITH A PREDETERMINED RESISTANCE VALUE COMPRISING THE STEPS OF FILLING A METALLIC CONTAINER WITH DISCRETE SILICON CARBIDE GRAINS WITHOUT THE ADDITION OF A BINDING AGENT, PLACING THE FILLED CONTAINER IN A PRESS, ELECTRICALLY CONNECTING A CONTROL DEVICE ASSOCIATED WITH THE PRESS SO THAT CONTROL CURRENT FLOWS THROUGH THE SILICON GRAINS IN SAID CONTAINER, OPERATING THE PRESS TO COMPRESS AND DEFORM SAID METALLIC CONTAINER AND GRAINS THEREIN UNTIL THE CURRENT FLOWING THROUGH SAID GRAINS REACHES A PREDETERMINED VALUE, THEREAFTER TERMINATING THE COMPRESSION ON SAID CONTAINER AND GRAINS THEREIN.
Claim 2
Independent Claim
100 words
A METHOD OF MAKING A NON-LINEAR ELECTRIC RESISTOR DISPOSED IN A METALLIC CASING WITH A PREDETERMINED RESISTANCE VALUE COMPRISING THE STEPS OF FILLING A METALLIC CONTAINER WITH DISCRETE SILICON CARBIDE GRAINS WITHOUT THE ADDITION OF A BINDING AGENT, PLACING THE FILLED CONTAINER IN A PRESS, ELECTRICALLY CONNECTING A CONTROL DEVICE ASSOCIATED WITH THE PRESS SO THAT CONTROL CURRENT FLOWS THROUGH THE SILICON GRAINS IN SAID CONTAINER, OPERATING THE PRESS TO COMPRESS AND DEFORM SAID METALLIC CONTAINER AND GRAINS THEREIN UNTIL THE CURRENT FLOWING THROUGH SAID GRAINS REACHES A PREDETERMINED VALUE, THEREAFTER TERMINATING THE COMPRESSION ON SAID CONTAINER AND GRAINS THEREIN.
References Cited (Backward Citations)
US2232103A
Cited
US2567715A
Cited
US2561169A
Cited
US2799051A
Cited
US3044139A
Cited
US3044389A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |