Patent US3415731A successfully refreshed from Google Patents.
US3415731A
Expired / Lapsed
US
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Glass electrodes and method for producing the same
Assignee: Beckman Coulter Inc
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Filing: 1965-09-27
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Granted: 1968-12-10
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Expires: 1985-09-27
Abstract
No abstract record available.
Inventors
- 👤 Norman W Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:18
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/28; G01N27/30; G01N27/36; C; C03; C03C; C03C17/00; C03C17/02; C03C17/04; C03C8/00; C03C8/02; C03C8/10; C03C8/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2507691A
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US2590893A
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US2691855A
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US2844693A
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US3000745A
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US3224436A
Cited
US3189677A
Cited
US3129160A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |