Patent US3188285A successfully refreshed from Google Patents.
US3188285A
Expired / Lapsed
US
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Electrode assembly
Assignee: Beckman Coulter Inc
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Filing: 1961-09-26
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Granted: 1965-06-08
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Expires: 1981-09-26
Abstract
No abstract record available.
Inventors
- 👤 Watanabe Hideo
- 👤 Lynn B Leonard
- 👤 Maurice L Deushane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:28
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/4162; G01N27/28; G01N27/30; G01N27/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
AN ELECTRODE ASSEMBLY FOR CHEMICAL ANALYSIS ADAPTED TO BE USED IN ANY PHYSICAL ORIENTATION, COMPRISING: A HOLLOW TUBULAR MEMBER, SAID TUBULAR MEMBER HAVING A CONSTRICTION INTERMEDIATE THE ENDS THEREOF, SAID CONSTRICTION DEFINING AN OPEN CAPILLARLY PASSAGE PROVIDING PRESSURE COMMUNICATION BETWEEN OPPOSITE SIDES OF SAID CONSTRICTION; A PH SENSITIVE GLASS MEMBRANE SEALNGLY CONNECTED TO ONE END OF SAID TUBULAR MEMBER; SAID MEMBRANE, SAID CONSTRICTION AND THE WALL OF SAID TUBULAR MEMBER DEFINING A FIRST COMPARTMENT IN SAID TUBULAR MEMBER; A CAP ON THE OTHER END OF SAID TUBULAR MEMBER; SAID CAP, SAID CONSTRICTION AND THE WALL OF SAID TUBULAR MEMBER DEFINING A SECOND COMPARTMENT IN SAID TUBULAR MEMBER; A BODY OF LIQUID ELECTROLYTE SUBSTANT IALLY COMPLETELY FILLING SAID FIRST COMPARTMENT; AND AN ELECTRODE POSITIONED IN SAID FIRST COMPARTMENT IN CONTACT WITH SAID ELECTROLYTE; SAID OPEN CAPILLARY PASSAGE BEING SUFFICIENTLY SMALL TO PREVENT FLOW OF SAID ELECTROLYTE FROM SAID FIRST COMPARTMENT TO SAID SECOND COMPARTMENT SOLELY UNDER THE INFLUENCE OF GRAVITY; AND MEANS ADAPTED TO COUPLE SAID ELECTRODE IN AN ELECTRICAL CIRCUIT.
Claim 2
Dependent Claim
170 words
AN ELECTRODE ASSEMBLY FOR CHEMICAL ANALYSIS ADAPTED TO BE USED IN ANY PHYSICAL ORIENTATION, COMPRISING: A HOLLOW TUBULAR MEMBER, SAID TUBULAR MEMBER HAVING A CONSTRICTION INTERMEDIATE THE ENDS THEREOF, SAID CONSTRICTION DEFINING AN OPEN CAPILLARLY PASSAGE PROVIDING PRESSURE COMMUNICATION BETWEEN OPPOSITE SIDES OF SAID CONSTRICTION; A PH SENSITIVE GLASS MEMBRANE SEALNGLY CONNECTED TO ONE END OF SAID TUBULAR MEMBER; SAID MEMBRANE, SAID CONSTRICTION AND THE WALL OF SAID TUBULAR MEMBER DEFINING A FIRST COMPARTMENT IN SAID TUBULAR MEMBER; A CAP ON THE OTHER END OF SAID TUBULAR MEMBER; SAID CAP, SAID CONSTRICTION AND THE WALL OF SAID TUBULAR MEMBER DEFINING A SECOND COMPARTMENT IN SAID TUBULAR MEMBER; A BODY OF LIQUID ELECTROLYTE SUBSTANT IALLY COMPLETELY FILLING SAID FIRST COMPARTMENT; AND AN ELECTRODE POSITIONED IN SAID FIRST COMPARTMENT IN CONTACT WITH SAID ELECTROLYTE; SAID OPEN CAPILLARY PASSAGE BEING SUFFICIENTLY SMALL TO PREVENT FLOW OF SAID ELECTROLYTE FROM SAID FIRST COMPARTMENT TO SAID SECOND COMPARTMENT SOLELY UNDER THE INFLUENCE OF GRAVITY; AND MEANS ADAPTED TO COUPLE SAID ELECTRODE IN AN ELECTRICAL CIRCUIT.
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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) | 1968-06-07 | 1968-12-07 | 1969-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-07 | 1972-12-07 | 1973-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-07 | 1976-12-07 | 1977-06-08 | $7700.00 | Window Closed / Lapsed |