US3303701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-contact temperature measurement system
Assignee: Hitachi Ltd
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Filing: 1963-03-25
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Granted: 1967-02-14
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Expires: 1983-03-25
Abstract
No abstract record available.
Inventors
- 👤 Matsuura Kiyokata
- 👤 Takami Katsumi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:58
CPC Classifications
G; G01; G01K; G01K13/00; G01K13/04; G01K13/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A TEMPERATURE MEASUREMENT SYSTEM FOR MEASURING THE TEMPERATURE OF AN OBJECT, COMPRISING; RESONANT CIRCUIT MEANS MOUNTED ON SAID OBJECT, SAID RESONANT CIRCUIT MEANS HAVING A RESONANT FREQUENCY VARIABLE WITH TEMPERATURE, AMPLIFIER MEANS HAVING AN INPUT AND AN OUTPUT, INTERMITTENT COUPLING MEANS CONNECTING SAID RESONSANT CIRCUIT MEANS TO SAID AMPLIFIER MEANS, SAID RESONANT CIRCUIT MEANS, INTERMITTENT COUPLING MEANS, AND AMPLIFIER MEANS FORMING A VARIABLE OSCILLATION MEANS, AND DETECTION MEANS FOR DETECTING THE OSCILLATION FREQUENCY OF SAID VARIABLE OSCILLATION MEANS.
Claim 2
Dependent Claim
78 words
A TEMPERATURE MEASUREMENT SYSTEM FOR MEASURING THE TEMPERATURE OF AN OBJECT, COMPRISING; RESONANT CIRCUIT MEANS MOUNTED ON SAID OBJECT, SAID RESONANT CIRCUIT MEANS HAVING A RESONANT FREQUENCY VARIABLE WITH TEMPERATURE, AMPLIFIER MEANS HAVING AN INPUT AND AN OUTPUT, INTERMITTENT COUPLING MEANS CONNECTING SAID RESONSANT CIRCUIT MEANS TO SAID AMPLIFIER MEANS, SAID RESONANT CIRCUIT MEANS, INTERMITTENT COUPLING MEANS, AND AMPLIFIER MEANS FORMING A VARIABLE OSCILLATION MEANS, AND DETECTION MEANS FOR DETECTING THE OSCILLATION FREQUENCY OF SAID VARIABLE OSCILLATION MEANS.
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) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |