US3649506A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid state glass electrode
Assignee: Beckman Coulter Inc
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Filing: 1969-10-14
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Granted: 1972-03-14
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Expires: 1989-10-14
Abstract
Abstract TRODE IS RUGGED HAS A RESPONSE APPROXIMATELY THAT OF A STANDARD GLASS ELECTRODE AND HAS BETTER STABILITZ OVER LONG PERIODS AND CHANGING TEMPERATURE CONDITIONS THAN PREVIOUS SOLID STATE GLASS ELECTRODES. A SOLID STATE GLASS ELECTRODE IN WHICH A CONDUCTOR HAVING A SURFACE LAYER OF AN ELECTROCHEMICALLY ACTIVE METAL IS COATED WITH A FIRST COATING OF A MIXTURE OF A GLASS AND A HALIDE OF THE ACTIVE METAL AND A SECOND OUTER COATING OF ION SENSITIVE GLASS. THE PREFERRED ACTIVE METAL AND HALIDE ARE COPPER AND CUPROUS CHLORIDE, RESPECTIVELY. THE ELEC-
Inventors
- 👤 Arne J Petersen
- 👤 George Matsuyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:47
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/28; G01N27/30; G01N27/36; Y; Y10; Y10S; Y10S65/00; Y10S65/06
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) | 1975-03-14 | 1975-09-13 | 1976-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-14 | 1979-09-13 | 1980-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-14 | 1983-09-13 | 1984-03-14 | $7700.00 | Window Closed / Lapsed |