US3765238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat flow meter
Assignee: Kyoto Electronics Manufacturing Co Ltd
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Filing: 1970-12-29
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Granted: 1973-10-16
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Expires: 1990-12-29
Abstract
Abstract D R A W I N G A HEAT FLOW METER COMPRISING FORMING A HEAT FLOW MEASURING PORTION BY PROVIDING ONE OR PLURAL PAIRS OF MUTUALLY CONNECTED DIFFERENTIAL THERMOCOUPLES ON TWO FACES OF A THERMAL RESISTANT PLATE TO MEASURE THE HEAT FLOW PASSING THROUGH SAID THERMAL RESISTANT PLATE, AND PROVIDING ON SAID HEAT FLOW MEASURING PORTION A COVERING PORTION COMPOSED BY A THIN HEAT RESISTING PLATE, METALLIC FILM, BLACK OR GRAY FILM AND A PROTECTIVE FILM.
Inventors
- 👤 J Nishimura
- 👤 S Sumikama
- 👤 K Osato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:00
CPC Classifications
G; G01; G01K; G01K17/00
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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |