US3558227A
Expired / Lapsed
US
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Device for spectral analysis of a solution
Assignee: Czech Academy of Sciences
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Filing: 1968-09-26
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Granted: 1971-01-26
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Expires: 1988-09-26
Abstract
Abstract A DEVICE FOR SPECTRAL ANALYSIS OF A SOLUTION WITH A POROUS ROTARY DISK ELECTRODE AND A BACK ELECTRODE. THE ROTARY ELECTRODE IS CLOSED ON ONE SIDE AND ON THE OTHER SIDE IT IS PROVIDED WITH A SUPPLY DUCT FOR THE SOLUTION TO BE ANALYSED AND CONNECTED WITH A TUBULAR DRIVE SHAFT THROUGH WHICH PASSES AN INLET TUBE COMMUNICATING WITH A CONTAINER OF THE SOLUTION. THE SPECIFIC RESISTANCE OF THE ROTARY ELECTRODE IS PREFERABLY 1000 TO 5000U$$CM. AND ITS APPARENT POROSITY IS 0.5 TO 30%.
Inventors
- 👤 Rarodmir Tlalka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:32
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/62; G01N21/66; G01N21/69
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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |