US3145157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ion sensitive electrode
Assignee: Beckman Coulter Inc
•
Filing: 1961-09-26
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Granted: 1964-08-18
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Expires: 1981-09-26
Abstract
No abstract record available.
Inventors
- 👤 Edwin P Arthur
- 👤 John E Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:37
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/28; G01N27/30; G01N27/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
IN A GLASS ELECTRODE FOR ION POTENTIAL MEASUREMENTS, INCLUDING AN ELECTROLYTE AND A HALF CELL CONTACTING THE ELECTROLYTE, THE COMBINATION OF: A METAL SUPPORTING TUBE HAVING AN EXTERNAL GLASS COATING AND AN INTERNAL GLASS COATING WITH SAID INTERNAL AND EXTERNAL COATINGS JOINED TO COVER AN END OF THE TUBE; AND AN ION SENSITIVE GLASS MEMBRANE CARRIED ON SAID TUBE AT SAID END, WITH SAID INTERNAL COATING AND MEMBRANE PROVIDING A CHAMBER OF THE ELECTROLYTE.
Claim 2
Dependent Claim
74 words
IN A GLASS ELECTRODE FOR ION POTENTIAL MEASUREMENTS, INCLUDING AN ELECTROLYTE AND A HALF CELL CONTACTING THE ELECTROLYTE, THE COMBINATION OF: A METAL SUPPORTING TUBE HAVING AN EXTERNAL GLASS COATING AND AN INTERNAL GLASS COATING WITH SAID INTERNAL AND EXTERNAL COATINGS JOINED TO COVER AN END OF THE TUBE; AND AN ION SENSITIVE GLASS MEMBRANE CARRIED ON SAID TUBE AT SAID END, WITH SAID INTERNAL COATING AND MEMBRANE PROVIDING A CHAMBER OF THE ELECTROLYTE.
References Cited (Backward Citations)
US2256733A
Cited
GB667471A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-18 | 1968-02-17 | 1968-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-18 | 1972-02-17 | 1972-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-18 | 1976-02-17 | 1976-08-18 | $7700.00 | Window Closed / Lapsed |