US3142987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor thermometer
Assignee: US Philips Corp
•
Filing: 1962-08-13
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Granted: 1964-08-04
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Expires: 1982-08-13
Abstract
No abstract record available.
Inventors
- 👤 Philip H Dowling
- 👤 Poleshuk Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:30
CPC Classifications
G; G01; G01K; G01K7/00; G01K7/01; H; H10; H10D; H10D99/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
98 words
A SEMICONDUCTOR THERMOMETER COMPRISING A SEMICONDUCTOR JUNCTION, MEANS FOR APPLYING ACROSS THE JUNCTION A VOLTAGE IN THE REVERSE DIRECTION INCLUDING MEANS FOR VARYING THE MAGNITUDE OF THE SAID VOLTAGE, SAID JUNCTION EXHIBITING THE CHARACTERISTIC THAT AT A PRESCRIBED REVERSE VOLTAGE VALUE WHICH IS A STABLE FUNCTION OF THE JUNCTION TEMPERATURE, PULSES OF CURRENT TRANVERSE THE JUNCTION AT CURRENT VALUES BELOW THAT VALUE AT WHICH APPRECIABLE HEATING OF THE JUNCTION OCCURS, AND MEANS FOR DETERMING THE VOLTAGE AT WHICH A PRESELECTED QUALITY OF THE SAID CURRENT PULSES IS ESTABLISHED TO THUS OBTAIN AN ACCURATE INDICATION OF THE JUNCTION TEMPERATURE.
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) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |