US3402883A
Expired / Lapsed
US
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Method for operating an ultracentrifuge and a suitable centrifuge for said method
Assignee: FIRM MARTIN CHRIST
•
Filing: 1965-11-23
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Granted: 1968-09-24
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Expires: 1985-11-23
Abstract
No abstract record available.
Inventors
- 👤 Karl-Heinz Romer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:16
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/50; B01L3/502; B01L3/5021; B01L3/54; B01L3/545; B01L3/5453; B04; B04B; B04B5/00; B04B5/04; B04B5/0407; B04B5/0414; B04B5/0421; B04B9/00; B04B9/10; G; G01; G01N; G01N21/00; G01N21/01; G01N21/03; G01N21/07; B04B7/00; B04B7/02; B04B2007/025; G01N35/00; G01N35/02; G01N35/04; G01N2035/0401; G01N2035/0429; G01N2035/0436; Y; Y10; Y10S; Y10S215/00; Y10S215/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3202348A
Cited
US3243105A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-24 | 1972-03-25 | 1972-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-24 | 1976-03-25 | 1976-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-24 | 1980-03-25 | 1980-09-24 | $7700.00 | Window Closed / Lapsed |