Patent US3140247A successfully refreshed from Google Patents.
US3140247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass electrodes for the measurement of ph
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1960-06-03
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Granted: 1964-07-07
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Expires: 1980-06-03
Abstract
No abstract record available.
Inventors
- 👤 Fournie-Taillant-Ver Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:16
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/28; G01N27/30; G01N27/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
IN A GLASS ELECTRODE FOR THE MEASUREMENT OF PH AT TEMPERATURES UP TO 150*C., A HOLLOW GLASS TUBE, A THIN PH SENSITIVE GLASS BOTTOM FOR SAID TUBE FREE OF METAL COATING ON ITS INTERNAL SURFACE, AN AMALGAM IN SAID BOTTOM, A METALLIC FILAMENT IN SAID TUBE FORMING A METALLIC JUNCTION WITH AND INSOLUBLE IN SAID AMALGAM AT HIGH TEMPERATURE AND A LIQUID INSULATING LAYER IN SAID TUBE COVERING SAID AMALGAM.
Claim 2
Dependent Claim
70 words
IN A GLASS ELECTRODE FOR THE MEASUREMENT OF PH AT TEMPERATURES UP TO 150*C., A HOLLOW GLASS TUBE, A THIN PH SENSITIVE GLASS BOTTOM FOR SAID TUBE FREE OF METAL COATING ON ITS INTERNAL SURFACE, AN AMALGAM IN SAID BOTTOM, A METALLIC FILAMENT IN SAID TUBE FORMING A METALLIC JUNCTION WITH AND INSOLUBLE IN SAID AMALGAM AT HIGH TEMPERATURE AND A LIQUID INSULATING LAYER IN SAID TUBE COVERING SAID AMALGAM.
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) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |