US3377256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkali analysis
Assignee: Beckman Coulter Inc
•
Filing: 1965-02-18
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Granted: 1968-04-09
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Expires: 1985-02-18
Abstract
No abstract record available.
Inventors
- 👤 Carlos J Sambucetti
- 👤 Deuringer Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:51
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/403; G01N27/404; G01N27/4045; G01N27/416; G01N27/42; G01N27/423
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
IN A GALVANIC PROCESS FOR DETERMINING A BASIC SPECIES, THE STEPS COMPRISING: CONVEYING A GAS STREAM CONTAINING SAID SPECIES TO AN AQUEOUS ELECTROLYTE CONTACTED BY AN ALUMINUM ANODE AND A CATHODE SELECTED FROM THE GROUP CONSISTING OF ACTIVE CARBON AND HG-HG2SO4, WHEREBY THE ALUMINUM ANODE IS OXIDIZED BY THE HYDROXYL IONS RESULTING FROM THE DISSOLUTION OF SAID SPECIES IN SAID ELECTROLYTE; AND MEASURING THE CURRENT ACROSS STHE ANODE AND CATHODE AS A FUNCTION OF THE RATE OF ENTRY OF SAID SPECIES INTO THE ELECTROLYTE.
Claim 2
Dependent Claim
84 words
IN A GALVANIC PROCESS FOR DETERMINING A BASIC SPECIES, THE STEPS COMPRISING: CONVEYING A GAS STREAM CONTAINING SAID SPECIES TO AN AQUEOUS ELECTROLYTE CONTACTED BY AN ALUMINUM ANODE AND A CATHODE SELECTED FROM THE GROUP CONSISTING OF ACTIVE CARBON AND HG-HG2SO4, WHEREBY THE ALUMINUM ANODE IS OXIDIZED BY THE HYDROXYL IONS RESULTING FROM THE DISSOLUTION OF SAID SPECIES IN SAID ELECTROLYTE; AND MEASURING THE CURRENT ACROSS STHE ANODE AND CATHODE AS A FUNCTION OF THE RATE OF ENTRY OF SAID SPECIES INTO THE ELECTROLYTE.
References Cited (Backward Citations)
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Cited
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US3236759A
Cited
US3234117A
Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-09 | 1971-10-09 | 1972-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-09 | 1975-10-09 | 1976-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-09 | 1979-10-09 | 1980-04-09 | $7700.00 | Window Closed / Lapsed |