Patent US3444068A successfully refreshed from Google Patents.
US3444068A
Expired / Lapsed
US
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Electrode and method of making same
Assignee: Beckman Coulter Inc
•
Filing: 1966-01-03
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Granted: 1969-05-13
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Expires: 1986-01-03
Abstract
No abstract record available.
Inventors
- 👤 Lynn B Leonard
- 👤 Arne J Petersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:03
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/28; G01N27/30; G01N27/36; Y; Y10; Y10S; Y10S65/00; Y10S65/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2117596A
Cited
US2311977A
Cited
GB667471A
Cited
US2755243A
Cited
DE1090451B
Cited
US3145157A
Cited
US3188285A
Cited
US3226313A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-12 | 1972-11-11 | 1973-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-12 | 1976-11-11 | 1977-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-12 | 1980-11-11 | 1981-05-13 | $7700.00 | Window Closed / Lapsed |