US3172011A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical circuit control apparatus
Assignee: Texas Instruments Inc
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Filing: 1961-06-09
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Granted: 1965-03-02
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Expires: 1981-06-09
Abstract
No abstract record available.
Inventors
- 👤 Charles D Flanagan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:24
CPC Classifications
H; H02; H02H; H02H5/00; H02H5/04; H02H5/042; H02H5/043; G; G05; G05D; G05D23/00; G05D23/19; G05D23/1919; G05D23/20; G05D23/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
AN ELECTRICAL CIRCUIT CONTROL COMPRISING A UNIT INCLUDING A CONDUCTIVE WIRE CORE ELECTRODE, A SPACED CONDUCTIVE SLEEVE ELECTRODE SURROUNDING THE WIRE CORE ELECTRODE, CONDUCTIVE MATERIAL BETWEEN THE WIRE CORE ELECTRODE AND THE SLEEVE ELECTRODE, THE MATERIAL BEING CHARACTERIZED IN THAT IN RESPONSE TO TEMPERATURE INCREASE OVER A CERTAIN RANGE IN WHICH SAID MATERIAL REMAINS IN A SOLID PHASE ITS RESISTANCE CHANGES MORE ABRUPTLY OVER A PORTION OF SAID RANGE THAN ELSEWHERE IN SAID RANGE, AND MEANS ADAPTED TO HEAT SAID MATERIAL TO A TEMPERATURE VALUE IN SAID RANGE AT WHICH SAID ABRUPT CHANGE IN RESISTANCE WILL OCCUR.
Claim 2
Dependent Claim
97 words
AN ELECTRICAL CIRCUIT CONTROL COMPRISING A UNIT INCLUDING A CONDUCTIVE WIRE CORE ELECTRODE, A SPACED CONDUCTIVE SLEEVE ELECTRODE SURROUNDING THE WIRE CORE ELECTRODE, CONDUCTIVE MATERIAL BETWEEN THE WIRE CORE ELECTRODE AND THE SLEEVE ELECTRODE, THE MATERIAL BEING CHARACTERIZED IN THAT IN RESPONSE TO TEMPERATURE INCREASE OVER A CERTAIN RANGE IN WHICH SAID MATERIAL REMAINS IN A SOLID PHASE ITS RESISTANCE CHANGES MORE ABRUPTLY OVER A PORTION OF SAID RANGE THAN ELSEWHERE IN SAID RANGE, AND MEANS ADAPTED TO HEAT SAID MATERIAL TO A TEMPERATURE VALUE IN SAID RANGE AT WHICH SAID ABRUPT CHANGE IN RESISTANCE WILL OCCUR.
References Cited (Backward Citations)
DE440392C
Cited
US1210058A
Cited
GB382565A
Cited
US2160823A
Cited
US2283706A
Cited
US2377506A
Cited
GB735755A
Cited
US2936434A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |