US3671327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multijunction thermocouples
Assignee: AC Cossor Ltd
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Filing: 1969-03-12
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Granted: 1972-06-20
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Expires: 1989-03-12
Abstract
Abstract A multijunction thermocouple is made by etching a metal foil having different metals to either side of a boundary line, so as to leave a pattern which zig-zags across the boundary line and forms a row of junctions along the boundary line.
Inventors
- 👤 Frank Munro Gay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:00
CPC Classifications
G; G01; G01K; G01K7/00; G01K7/02; G01K7/04; G01R; G01R5/00; G01R5/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |