Patent US3444067A successfully refreshed from Google Patents.
US3444067A
Expired / Lapsed
US
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Method of filling an electrode tube with liquid
Assignee: Beckman Coulter Inc
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Filing: 1965-07-12
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Granted: 1969-05-13
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Expires: 1985-07-12
Abstract
No abstract record available.
Inventors
- 👤 Hideo Watanabe
- 👤 Edmund E Buzza
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:06
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/28; G01N27/30; Y; Y10; Y10S; Y10S65/00; Y10S65/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1345347A
Cited
US2117596A
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GB492936A
Cited
DE713093C
Cited
US2387727A
Cited
US2696937A
Cited
FR1013055A
Cited
US3103480A
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 |