US3211640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Encapsulated transducer
Assignee: Beckman Coulter Inc
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Filing: 1962-01-29
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Granted: 1965-10-12
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Expires: 1982-01-29
Abstract
No abstract record available.
Inventors
- 👤 John E Leonard
- 👤 Edwin P Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:50
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/28; G01N27/30; G01N27/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A GLASS ELECTRODE FOR ELECTROCHEMICAL MEASUREMENTS INCLUDING IN COMBINATION: AN ELONGATE NEEDLE-LIKE GLASS TUBE FORMED OF ION SENSITIVE GLASS HAVING A PROTION OF THE TUBE END FORMED INTO A MEMBRANE DISPOSED LATERALLY ACROSS AND CLOSING THE TUBE END, SAID MEMBRANE HAVING A TAIL AT THE EDGE THEREOF; AND A NONCONDUCTIVE JACKET DISPOSED ABOUT AND ADHERED TO SAID TUBE, WITH SAID JACKET ENCLOSING SAID TAIL AND BEING SUBSTANTIALLY FLUSH WITH SAID MEMBRANE.
Claim 2
Dependent Claim
71 words
A GLASS ELECTRODE FOR ELECTROCHEMICAL MEASUREMENTS INCLUDING IN COMBINATION: AN ELONGATE NEEDLE-LIKE GLASS TUBE FORMED OF ION SENSITIVE GLASS HAVING A PROTION OF THE TUBE END FORMED INTO A MEMBRANE DISPOSED LATERALLY ACROSS AND CLOSING THE TUBE END, SAID MEMBRANE HAVING A TAIL AT THE EDGE THEREOF; AND A NONCONDUCTIVE JACKET DISPOSED ABOUT AND ADHERED TO SAID TUBE, WITH SAID JACKET ENCLOSING SAID TAIL AND BEING SUBSTANTIALLY FLUSH WITH SAID MEMBRANE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |