US3276589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for maintenance and treatment of blood in vitro
Assignee: Individual
•
Filing: 1961-12-18
•
Granted: 1966-10-04
•
Expires: 1981-12-18
Abstract
No abstract record available.
Inventors
- 👤 Jankay Lester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:56
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/44; A61M5/445; A61M1/00; A61M1/14; A61M1/16; A61M1/36; A61M1/3621; A61M1/3623; Y; Y10; Y10S; Y10S128/00; Y10S128/03
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
143 words
APPARATUS FOR THE MAINTENANCE AND TREATMENT OF BLOOD IN VITRO COMPRISING; FIRST AND SECOND PERMEABLE SAC MEMBERS FORMED OF A MATERIAL CAPABLE OF PERMITING A DIALYTIC OSMOTIC EXCHANGE BETWEEN BLOOD AND A BLOOD PLASMA WASH FLUID, AN IMPERMEABLE SAC IN SUBSTANTIALLY ENCLOSING POSITION AROUND EACH OF SAID FIRST AND SECOND PERMEABLE SAC MEMBERS, MEANS FOR INTRODUCING SAID BLOOD INTO SAID FIRST AND SECOND PERMEABLE MEMBERS, MEANS FOR INTRODUCING SAID WASH FLUID INTO SAID IMPERMEABLE SACS, SAID FIRST AND SECOND SAC MEMBERS BEING TUBULAR AND BEING NORMALLY DISPOSED IN A SUBSTANTIALLY VERTICALLY POSITION, PASSAGE MEANS INTERCOMMUNICATING THE LOWER ENDS OF SAID FIRST AND SECOND PERMEABLE MEMBERS WHEREBY SAID INTRODUCED BLOOD CAN FLOW FREELY FROM ONE MEMBER INTO THE OTHER, A PRESSURIZED SOURCE OF OXYGENATING GAS, GAS CONDUIT MEANS COUPLING SAID SOURCE TO THE UPPER ENDS OF EACH OF SAID FIRST AND SECOND PERMEABLE MEMBERS,
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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) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |