US2351708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifuge
Assignee: Individual
•
Filing: 1941-10-31
•
Granted: 1944-06-20
•
Expires: 1961-10-31
Abstract
No abstract record available.
Inventors
- 👤 George A Rubissow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:29
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/50; B01L3/502; B01L3/5021; B04; B04B; B04B5/00; B04B5/04; B04B5/0407; B04B5/0414; B04B5/0421; B04B7/00; B04B7/08; G; G10; G10K; G10K1/00; G10K1/06; G10K1/062; G10K1/063; G10K1/064; G10K1/0645; H; H03; H03J; H03J1/00; H03J1/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-06-20 | 1947-12-20 | 1948-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-06-20 | 1951-12-20 | 1952-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-06-20 | 1955-12-20 | 1956-06-20 | $7700.00 | Window Closed / Lapsed |