US3560268A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for measuring electrolyte concentration
Assignee: VARTA AG
•
Filing: 1968-09-30
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Granted: 1971-02-02
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Expires: 1988-09-30
Abstract
Abstract BI-PLASTIC STRIPS FOR MEASURING THE CONCENTRATION OF ELECTROLYTE IN GALVANIC CELLS ARE FORMED FROM A STRIP OF ION EXCHANGE MATERIAL WHICH SWELLS IN THE ELECTROLYTE AND A STRIP OF A SECOND MATERIAL WHICH IS STABLE IN THE ELECTROLYTE AND HAS LOW BENDING MOMENT. THE TWO STRIPS ARE USED IN A BACK-TO-BACK RELATION WITH ONE END OF THE STRIP IMMOBILE AND ONE END MOBILE.
Inventors
- 👤 August Winsel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:53
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/28; H; H01; H01M; H01M10/00; H01M10/42; H01M10/48; H01M10/484; Y; Y02; Y02E; Y02E60/00; Y02E60/10
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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |