US3717565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ion-responsive electrode construction
Assignee: Schneider Electric Systems USA Inc
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Filing: 1970-08-19
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Granted: 1973-02-20
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Expires: 1990-08-19
Abstract
Abstract AN ION-SENSING ELECTRODE INCLUDING A FRAGILE ION-SENSITIVE MEMBRANE SUPPORTED BY A REINFORCING STRUCTURE IN THE FORM OF A HONEYCOMB TO PROVIDE FOR THE MEMBRANE MECHANICAL STRENGTH AND RESISTANCE TO DAMAGE. THE REINFORCING STRUCTURE AND MEMBRANE CAN BE FORMED AS A SINGLE HOMOGENEOUS UNIT BY MOLDING FROM ION-SENSITIVE GLASS, AND/OR BY MACHINING TECHNIQUES. D R A W I N G
Inventors
- 👤 N Doyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:02
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/28; G01N27/30; G01N27/36
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) | 1976-02-20 | 1976-08-21 | 1977-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-20 | 1980-08-21 | 1981-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-20 | 1984-08-21 | 1985-02-20 | $7700.00 | Window Closed / Lapsed |