US3594130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blood oxygenator
Assignee: RTX Corp
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Filing: 1969-03-24
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Granted: 1971-07-20
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Expires: 1989-03-24
Abstract
Abstract A THIN FILM BLOOD OXYGENATOR USABLE WITH HYPERBARIC OXYGEN IS CONSTRUCTED IN TWO FLAT SPACED PLATES SANDWICHING A PAIR OF SEMIPERMEABLE MEMBRANES SUPPORTED BY GLASS BEADS WHEREBY BLOOD IS PASSED BETWEEN THE SEMIPERMEABLE MEMBRANES AND OXYGEN IS PASSED OVER THE OUTER SURFACE OF THE MEMBRANES AND BETWEEN THE GLASS BEADS. CHANNELS FORMED IN THE FLAT PLATE SERVE TO DISTRIBUTE THE BLOOD AND OXYGEN IN A PREDETERMINED FLOW PATH. D R A W I N G
Inventors
- 👤 Howard L North Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:07
CPC Classifications
B; B01; B01D; B01D63/00; B01D63/08; B01D2313/00; B01D2313/08
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) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |