US2817264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrophoresis apparatus
Assignee: Beckman Coulter Inc
•
Filing: 1953-10-19
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Granted: 1957-12-24
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Expires: 1973-10-19
Abstract
No abstract record available.
Inventors
- 👤 Frank A Pearson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:07
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/447; G01N27/44704; G01N27/44717; G01N27/44721; G01N27/44756
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2253581A
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US2412602A
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US2362235A
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US2495297A
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US2630042A
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US2762254A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-23 | 1961-06-24 | 1961-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-23 | 1965-06-24 | 1965-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-23 | 1969-06-24 | 1969-12-24 | $7700.00 | Window Closed / Lapsed |