US3168474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifuge apparatus
Assignee: Beckman Coulter Inc
•
Filing: 1963-04-25
•
Granted: 1965-02-02
•
Expires: 1983-04-25
Abstract
No abstract record available.
Inventors
- 👤 Richard C Stallman
- 👤 Edward G Pickels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:11
CPC Classifications
B; B04; B04B; B04B11/00; B04B11/02; B04B1/00; B04B1/04; B04B5/00; B04B5/08; B04B5/04; B04B5/0442; B04B2005/0464
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2563550A
Cited
US487943A
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US496120A
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US508744A
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US521104A
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US446210A
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US732886A
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US721186A
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US821554A
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US1061656A
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US1508405A
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US2610788A
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US3007629A
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US3108955A
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US2710718A
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GB862799A
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GB852392A
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US3073517A
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US3103489A
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US3109839A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-02 | 1968-08-03 | 1969-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-02 | 1972-08-03 | 1973-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-02 | 1976-08-03 | 1977-02-02 | $7700.00 | Window Closed / Lapsed |