US3098813A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode
Assignee: Beckman Coulter Inc
•
Filing: 1959-02-06
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Granted: 1963-07-23
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Expires: 1979-02-06
Abstract
No abstract record available.
Inventors
- 👤 Cedric H Beebe
- 👤 Max D Liston
- 👤 Earl W Mckinley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:46
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/403; G01N27/404
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
IN A POLAROGRAPHIC ELECTRODE ASSEMBLE ADAPTED TO BE INSERTED THROUGH A HYPODERMIC NEEDLE FOR DETERMINING THE PROPORTION QUANTITY OF A CONSTITUENT OF A COMPOSITTION, THE COMBINATION OF: AN ELONGATED SUPPORT BODY OF NONCONDUCTING MATERIAL; A SENSING ELECTROE ELEMENT IN THE FORM OF A CONDUCTOR ENCLOSED WITHIN SAID BODY WITH AN END OF SAID CONDUCTOR PROJECTING THROUGH AN END OF SAID BODY TO THE OUTER SURFACE THEREOF; A REFERENCE ELECTRODE ELEMENT IN THE FORM OF AN ANNULAR RING OF CONDUCTING MATERIAL DISPOSED AROUND SAID BODY AND SPACED FROM SAID END DEFINING AN ANNULAR SPACE BETWWEEN THE PERIPHERY OF SAID BODY AND RING FOR RETAINING AN ELECTROLYTE; A MEMBRANE HAVING A THICKNESS GREATER THAN THE MAXIMUM WIDTH OF THE END OF SAID CONDUCTOR PROJECTING THROUGH SAID END OF SAID BODY, SELECTIVELY PERMEABLE TO SAID CONSTITUENT AND FORMED OVER SAID END AND SAID RING ENCLOSING SAID ANNULAR SPACE; MENS FOR ELECTRICALLY CONNECTING EACH OF SAID ELECTORDE ELEMENTS TO AN EXTERNAL MEASURING CIRCUIT; AND MEANS FOR CLAMPING SAID MEMBRANE IN POSITION.
Claim 2
Dependent Claim
167 words
IN A POLAROGRAPHIC ELECTRODE ASSEMBLE ADAPTED TO BE INSERTED THROUGH A HYPODERMIC NEEDLE FOR DETERMINING THE PROPORTION QUANTITY OF A CONSTITUENT OF A COMPOSITTION, THE COMBINATION OF: AN ELONGATED SUPPORT BODY OF NONCONDUCTING MATERIAL; A SENSING ELECTROE ELEMENT IN THE FORM OF A CONDUCTOR ENCLOSED WITHIN SAID BODY WITH AN END OF SAID CONDUCTOR PROJECTING THROUGH AN END OF SAID BODY TO THE OUTER SURFACE THEREOF; A REFERENCE ELECTRODE ELEMENT IN THE FORM OF AN ANNULAR RING OF CONDUCTING MATERIAL DISPOSED AROUND SAID BODY AND SPACED FROM SAID END DEFINING AN ANNULAR SPACE BETWWEEN THE PERIPHERY OF SAID BODY AND RING FOR RETAINING AN ELECTROLYTE; A MEMBRANE HAVING A THICKNESS GREATER THAN THE MAXIMUM WIDTH OF THE END OF SAID CONDUCTOR PROJECTING THROUGH SAID END OF SAID BODY, SELECTIVELY PERMEABLE TO SAID CONSTITUENT AND FORMED OVER SAID END AND SAID RING ENCLOSING SAID ANNULAR SPACE; MENS FOR ELECTRICALLY CONNECTING EACH OF SAID ELECTORDE ELEMENTS TO AN EXTERNAL MEASURING CIRCUIT; AND MEANS FOR CLAMPING SAID MEMBRANE IN POSITION.
References Cited (Backward Citations)
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Cited
US2215213A
Cited
US2416949A
Cited
US2437697A
Cited
GB628840A
Cited
US2651612A
Cited
US2805191A
Cited
US2913386A
Cited
US3000805A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-22 | 1967-01-21 | 1967-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-22 | 1971-01-21 | 1971-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-22 | 1975-01-21 | 1975-07-23 | $7700.00 | Window Closed / Lapsed |