US2474665A
Expired / Lapsed
US
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Pneumatic blood treating apparatus
Assignee: FRANK J GUARINO
•
Filing: 1946-02-26
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Granted: 1949-06-28
•
Expires: 1966-02-26
Abstract
No abstract record available.
Inventors
- 👤 John R Guarino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:30
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/14; A61M1/32; A61M60/00; A61M60/10; A61M60/104; A61M60/109; A61M60/113; A61M60/30; A61M60/36; A61M60/38; A61M60/80; A61M60/855; A61M60/89; A61M60/892; A61M60/894; Y; Y10; Y10S; Y10S128/00; Y10S128/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE492770C
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FR743148A
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FR546947A
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US1683877A
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US2002008A
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US2137132A
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US2308516A
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US2406207A
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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) | 1952-06-27 | 1952-12-27 | 1953-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-27 | 1956-12-27 | 1957-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-27 | 1960-12-27 | 1961-06-28 | $7700.00 | Window Closed / Lapsed |