US3434953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrochemical electrode assembly
Assignee: Beckman Coulter Inc
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Filing: 1966-06-28
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Granted: 1969-03-25
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Expires: 1986-06-28
Abstract
No abstract record available.
Inventors
- 👤 Joe A Porter
- 👤 Ronald F Waters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:40
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
AN ELECTROCHEMICAL ELECTRODE ASSEMBLY COMPRISING: INNER AND OUTER TUBULAR MEMBERS SPACED APART AND SEALED AT ONE END THEREOF TO DEFINE AN ANNULAR RESERVOIR FOR A SALT BRIDGE SOLUTION; CAP MEANS CLOSING SAID OTHER END OF SAID INNER AND OUTER TUBULAR MEMBERS; AN INTERNAL HALF CELL POSITIONED IN SAID RESERVOIR FOR CONTACTING SAID SALT BRIDGE SOLUTION; LIQUID JUNCTION MEANS IN SAID OUTER TUBULAR MEMBER ADJACENT TO SAID ONE END; AN ION SENSING ELECTRODE INCLUDING A TUBE CLOSED AT ONE END BY AN IRON SENSITIVE BARRIER, SAID TUBE HAVING A CROSS-SECTIONAL AREA LESS THAN THAT OF SAID INNER TUBULAR MEMBER; MEANS REPLACEABLY MOUNTING SAID ION SENSING ELECTRODE COAXIALLY WITHIN SAID INNER TUBULAR MEMBER WITH SAID ION SENSITIVE BARRIER ADJACENT TO SAID ONE END OF SAID TUBULAR MEMBERS; AND ANNULAR SEALING MEANS BETWEEN SAID TUBE OF SAID ION SENSING ELECTRODE AND SAID INNER TUBULAR MEMBER.
Claim 2
Dependent Claim
142 words
AN ELECTROCHEMICAL ELECTRODE ASSEMBLY COMPRISING: INNER AND OUTER TUBULAR MEMBERS SPACED APART AND SEALED AT ONE END THEREOF TO DEFINE AN ANNULAR RESERVOIR FOR A SALT BRIDGE SOLUTION; CAP MEANS CLOSING SAID OTHER END OF SAID INNER AND OUTER TUBULAR MEMBERS; AN INTERNAL HALF CELL POSITIONED IN SAID RESERVOIR FOR CONTACTING SAID SALT BRIDGE SOLUTION; LIQUID JUNCTION MEANS IN SAID OUTER TUBULAR MEMBER ADJACENT TO SAID ONE END; AN ION SENSING ELECTRODE INCLUDING A TUBE CLOSED AT ONE END BY AN IRON SENSITIVE BARRIER, SAID TUBE HAVING A CROSS-SECTIONAL AREA LESS THAN THAT OF SAID INNER TUBULAR MEMBER; MEANS REPLACEABLY MOUNTING SAID ION SENSING ELECTRODE COAXIALLY WITHIN SAID INNER TUBULAR MEMBER WITH SAID ION SENSITIVE BARRIER ADJACENT TO SAID ONE END OF SAID TUBULAR MEMBERS; AND ANNULAR SEALING MEANS BETWEEN SAID TUBE OF SAID ION SENSING ELECTRODE AND SAID INNER TUBULAR MEMBER.
References Cited (Backward Citations)
GB677471A
Cited
US2884365A
Cited
DE1090451B
Cited
US3049118A
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US3211638A
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US3226313A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |