Patent US3495070A successfully refreshed from Google Patents.
Patent US2954336A successfully refreshed from Google Patents.
US2954336A
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Universal titrating agent generator
Assignee: Standard Oil Co
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Filing: 1957-07-30
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Granted: 1960-09-27
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Expires: 1977-07-30
Abstract
No abstract record available.
Inventors
- 👤 James F Grutsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:01
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/42; G01N27/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A SYSTEM FOR ELECTRICALLY PRODUCING TITRATING IONS AND FOR EFFECTING THE TITRATION OF AN UNKNOWN SAMPLE, THE IMPROVEMENT WHICH COMPRISES TITRATION CELL MEANS, TITRATING ION CELL MEANS, A COMMON WALL BETWEEN SAID CELL MEANS, SAID WALL COMPRISING AN ION EXCHANGE MEMBRANE, SAID MEMBRANE BEING PERMEABLE TO THE TITRATING IONS, AN ELECTROLYTE SOLUTION IN SAID CELL MEANS, MEANS FOR INTRODUCTING A TEST SAMPLE INTO SAID TITRATION CELL, MEANS FOR SUPPLYING A TITRATING ION-PRODUCING SOLUTION IN SAID GENERATION CELL, ELECTRODE MEANS IN EACH OF SAID CELLS ADAPTED TO CAUSE THE MIGRATION OF TITRATING ION FROM SAID TITRATING CELL INTO SAID TITRATION CELL THROUGH SAID WALL, AND A SECOND PAIR OF ELECTRODES IN SAID TITRATION CELL ADAPTED TO DETECT THE PRESENCE OF AN EXCESS OF TITRATING IONS THEREIN, THE PRESSENCE OF SAID EXCESS IONS BEING AN INDICATION OF THE END POINT OF THE TITRATION.
Claim 2
Independent Claim
141 words
A SYSTEM FOR ELECTRICALLY PRODUCING TITRATING IONS AND FOR EFFECTING THE TITRATION OF AN UNKNOWN SAMPLE, THE IMPROVEMENT WHICH COMPRISES TITRATION CELL MEANS, TITRATING ION CELL MEANS, A COMMON WALL BETWEEN SAID CELL MEANS, SAID WALL COMPRISING AN ION EXCHANGE MEMBRANE, SAID MEMBRANE BEING PERMEABLE TO THE TITRATING IONS, AN ELECTROLYTE SOLUTION IN SAID CELL MEANS, MEANS FOR INTRODUCTING A TEST SAMPLE INTO SAID TITRATION CELL, MEANS FOR SUPPLYING A TITRATING ION-PRODUCING SOLUTION IN SAID GENERATION CELL, ELECTRODE MEANS IN EACH OF SAID CELLS ADAPTED TO CAUSE THE MIGRATION OF TITRATING ION FROM SAID TITRATING CELL INTO SAID TITRATION CELL THROUGH SAID WALL, AND A SECOND PAIR OF ELECTRODES IN SAID TITRATION CELL ADAPTED TO DETECT THE PRESENCE OF AN EXCESS OF TITRATING IONS THEREIN, THE PRESSENCE OF SAID EXCESS IONS BEING AN INDICATION OF THE END POINT OF THE TITRATION.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-27 | 1964-03-28 | 1964-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-27 | 1968-03-28 | 1968-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-27 | 1972-03-28 | 1972-09-27 | $7700.00 | Window Closed / Lapsed |