Patent US3565769A successfully refreshed from Google Patents.
US3565769A
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Method and apparatus for determination of hydrogen content in a high temperature fluid
Assignee: GA Technologies Inc
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Filing: 1967-10-17
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Granted: 1971-02-23
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Expires: 1987-10-17
Abstract
Abstract THE HYDROGEN CONTENT IN A HIGH TEMPERATURE FLUID SUCH AS LIQUID SODIUM IS MEASURED BY IMMERSING THEREINTO A PROBE TO FORM AN EQUILIBRIUM ELECTOYLTIC CELL. THE PROBE IS IN THE FORM OF A METALLIC CLOSED-END TUBE IMPERVIOUS TO THE FLUID BUT PERMEABLE TO HYDROGEN. INSIDE THE TUBE IS A HYDROGEN REFERENCE ELECTRODE ELECTRICALLY INSULATED THEREFROM AND IS FILLED WITH A FUSED SALT ELECTROLYTE DOPED WITH AN ALKALI METAL HYDRIDE.
Inventors
- 👤 Robert B Holden
- 👤 Morris Kolodney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:42
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/403; G01N27/406; G01N27/411; G01N27/4112; G01N27/4114
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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |