US2650709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous extracorporeal dialyzer
Assignee: Individual
•
Filing: 1948-08-06
•
Granted: 1953-09-01
•
Expires: 1968-08-06
Abstract
No abstract record available.
Inventors
- 👤 Stephan S Rosenak
- 👤 Saltzman Abraham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:44
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/24; B01D61/28; B01D63/00; B01D63/10; B01D63/101; B01D2313/00; B01D2313/02; Y; Y10; Y10S; Y10S159/00; Y10S159/27
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1825631A
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US1964391A
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US2040805A
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US2124951A
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GB489654A
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US2225024A
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US2365457A
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US2353760A
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US2386725A
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US2502614A
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US2461505A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-31 | 1957-03-02 | 1957-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-31 | 1961-03-02 | 1961-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-31 | 1965-03-02 | 1965-09-01 | $7700.00 | Window Closed / Lapsed |