US2659368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extracorporeal circulation device
Assignee: Jefferson Medical College of Philadelphia
•
Filing: 1949-05-28
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Granted: 1953-11-17
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Expires: 1969-05-28
Abstract
No abstract record available.
Inventors
- 👤 Jr John H Gibbon
- 👤 John R Engstrom
- 👤 Jr Edmund A Barber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:52
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/36; A61M1/3621; A61M1/14; A61M1/32; A61M1/3623; Y; Y10; Y10S; Y10S128/00; Y10S128/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1290647A
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US1739373A
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US2051320A
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US2281616A
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US2172222A
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US2308516A
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US2241743A
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US2406207A
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US2474665A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-16 | 1957-05-18 | 1957-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-16 | 1961-05-18 | 1961-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-16 | 1965-05-18 | 1965-11-17 | $7700.00 | Window Closed / Lapsed |