US3681032A
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Carbon content analysis
Assignee: United Kingdom Atomic Energy Authority
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Filing: 1970-06-09
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Granted: 1972-08-01
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Expires: 1990-06-09
Abstract
Abstract AN ENCLOSURE OF A METAL IN WHICH CARBON IS SOLUBLE AND MOBILE AT THE OPERATING TEMPERATURE IS INSERTED INTO THE GAS ATMOSPHERE OF A FURNACE. HYDROGEN (IN EXCESS) AND CARBON FROM THE FURNACE ATMOSPHERE PERMEATE TO THE INTERIOR OF THE ENCLOSURE AND THERE REACT TO FORM METHANE. MEASUREMENT OF THE METHANE CONCENTRATION IN THE ENCLOSURE PROVIDES AN INDICATION OF CARBON CONTENT IN THE GAS ATMOSPHERE.
Inventors
- 👤 Geoffrey Long
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:52
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/0004; G01N33/0009; G01N33/0011; G01N33/0013; G01N7/00; G01N7/14; Y; Y10; Y10T; Y10T436/00; Y10T436/23
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |