Patent US3221554A successfully refreshed from Google Patents.
US3221554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High temperature sensors
Assignee: Honeywell Inc
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Filing: 1964-01-09
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Granted: 1965-12-07
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Expires: 1984-01-09
Abstract
No abstract record available.
Inventors
- 👤 Frederick W Kuether
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:55
CPC Classifications
G; G01; G01K; G01K7/00; G01K7/02; G01K7/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A TEMPERATURE SENSOR COMPRISING TUBES OF FIRST AND SECOND DISSIMILAR METAL MEMBERS BUTT WELDED TO FORM A THERMOCOUPLE JUNCTION, MEANS FOR PASSING A COOLING FLUID THROUGH THE BORE OF SAID THERMOCOUPLE JUNCTION, AND METER MEANS CONNECTED TO SAID MEMBERS FOR MEASURING THE ELECTRICAL OUTPUT OF SAID THERMOCOUPLE.
Claim 2
Dependent Claim
47 words
A TEMPERATURE SENSOR COMPRISING TUBES OF FIRST AND SECOND DISSIMILAR METAL MEMBERS BUTT WELDED TO FORM A THERMOCOUPLE JUNCTION, MEANS FOR PASSING A COOLING FLUID THROUGH THE BORE OF SAID THERMOCOUPLE JUNCTION, AND METER MEANS CONNECTED TO SAID MEMBERS FOR MEASURING THE ELECTRICAL OUTPUT OF SAID THERMOCOUPLE.
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) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |