US3827860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blood oxygenation device
Assignee: Sherwood Medical Co
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Filing: 1972-06-15
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Granted: 1974-08-06
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Expires: 1992-06-15
Abstract
Abstract A BUBBLE OXYGENATION DEVICE WHICH INCLUDES A CYLINDRICAL OXYGENATORR CHAMBER CONNECTED IN SERIES WITH A DEFOAMING CHAMBER AD A SETTLING CHAMBER, AND AN OXYGEN DISPERSER MEMBER FOR DELIVERING OXYGEN AND VENOUS BLOOD TO THE OXYGENATOR CHAMBER, THE DISPERSER MEMBER BEING SLIDABLE IN THE OXYGENATOR TO CONTROL THE OXYGENATION CAPACITY THEREOF.
Inventors
- 👤 N Burlis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:35
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/14; A61M1/32; A61M1/322; A61M1/325; A61M1/36; A61M1/3621; A61M1/3627; A61M1/3622; A61M1/36226; A61M1/362262; A61M1/362263; Y; Y10; Y10S; Y10S128/00; Y10S128/03; Y10S261/00; Y10S261/28
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) | 1977-08-05 | 1978-02-04 | 1978-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-05 | 1982-02-04 | 1982-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-05 | 1986-02-04 | 1986-08-06 | $7700.00 | Window Closed / Lapsed |