US3073757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polarographic method and apparatus
Assignee: Individual
•
Filing: 1959-06-22
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Granted: 1963-01-15
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Expires: 1979-06-22
Abstract
No abstract record available.
Inventors
- 👤 Rolf K Ladisch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:28
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/28; G01N27/30; G01N27/34
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
78 words
AN ELECTROCHEMICAL METHOD OF ANALYSIS CHARACTERIZED BY THE STEPS OF CAUSING THE TEST SOLUTION UNDER INVESTIGATION TO MIGRATE THROUGH A POROUS WALL ON THE OTHER SURFACE OF WHICH IS A BODY OF MERCURY; SAID POROUS WALL BEING IMPERMEABLE TO THE MERCURY; AND APPLYING AN ELECTRICAL POTENTIAL TO THE MERCURY VIA A SUITABLE ELECTRODE ADAPTED TO BE IN ELECTROLYTIC CONTACT WITH THE TEST SOLUTION, SO AS TO PRODUCE A DESIRED ELECTRODE REACTION BETWEEN THE TEST SOLUTION AND THE MERCURY.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |