Patent US3718567A successfully refreshed from Google Patents.
US3718567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode assembly
Assignee: Honeywell International Inc
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Filing: 1970-04-07
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Granted: 1973-02-27
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Expires: 1990-04-07
Abstract
Abstract ANALYSIS CHAMBER CLAMPS THE SELECTIVELY PERMEABLE MEMBRANE AGAINST THE EXTERNAL SURFACE OF THE STEM. ELECTROCHEMICAL APPARATUS INCLUDES AN ELECTODE ASSEMBLY HAVING AN ELECTROLYTE CHAMBER WITH A PROJECTING STEM PORTION. A PH SENSITIVE MEMBRANE IS SECURED ACROSS THE END OF THE PROJECTING STEM PORTION AND A SELECTIVELY PERMEABLE MEMBRANE IS SECURED OVER THE PH SENSITIVE MEMBRANE. THE ELECTRODE ASSEMBLY IS DISPOSED IN AN ANALYSIS CHAMBER SO THAT THE PH SENSITIVE MEMBRANE IS ENTIRELY WITHIN THE ANALYSIS CHAMBER. A CLAMP AT THE PORT OF THE
Inventors
- 👤 I Haddad
- 👤 T Rosse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:06
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/28; G01N27/30; G01N27/333; G01N27/3335
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) | 1976-02-27 | 1976-08-28 | 1977-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-27 | 1980-08-28 | 1981-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-27 | 1984-08-28 | 1985-02-27 | $7700.00 | Window Closed / Lapsed |