US2720879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dialysis apparatus
Assignee: Individual
•
Filing: 1954-02-15
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Granted: 1955-10-18
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Expires: 1974-02-15
Abstract
No abstract record available.
Inventors
- 👤 Gasca Albin
- 👤 Bugiel Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:26
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/14; A61M1/16; A61M1/1694; B; B01; B01D; B01D61/00; B01D61/24; B01D61/28; Y; Y10; Y10S; Y10S128/00; Y10S128/03; Y10T; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2151
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
IN DIALYSIS APPARATUS ADAPTED TO BE INTERPOSED IN THE BODY CIRCULATION OF A PATIENT TO CLEANSE THE BLOOD OF TOXIC SUBSTANCES, PARTICULARLY NITROGENOUS WASTE PRODUCTS, WHICH HAVE ACCUMULATED BY REASON OF A DEFECT IN THE KIDNEYS OF THE PATIENT; THE COMBINATION OF TWO SUPERPOSED TANKS, COMMUNICATING PIPE BETWEEN SAID TANKS, MEANS CAUSING A DIALYSIS LIQUID TO CIRCULATE IN A CLOSED CIRCUIT THROUGH BOTH OF SAID TANKS, AT LEAST ONE DIALYSER ELEMENT MOUNTED IN THE UPPER ONE OF SAID TANKS, MEANS FOR DRAWING BLOOD FROM A PATIENT AND FOR PASSING THE BLOOD THROUGH SAID ELEMENT, AND MEANS FOR RETURNING THE BLOOD FORM SAID ELEMENT TO THE BLOOD STREAM OF THE PATIENT.
Claim 2
Dependent Claim
110 words
IN DIALYSIS APPARATUS ADAPTED TO BE INTERPOSED IN THE BODY CIRCULATION OF A PATIENT TO CLEANSE THE BLOOD OF TOXIC SUBSTANCES, PARTICULARLY NITROGENOUS WASTE PRODUCTS, WHICH HAVE ACCUMULATED BY REASON OF A DEFECT IN THE KIDNEYS OF THE PATIENT; THE COMBINATION OF TWO SUPERPOSED TANKS, COMMUNICATING PIPE BETWEEN SAID TANKS, MEANS CAUSING A DIALYSIS LIQUID TO CIRCULATE IN A CLOSED CIRCUIT THROUGH BOTH OF SAID TANKS, AT LEAST ONE DIALYSER ELEMENT MOUNTED IN THE UPPER ONE OF SAID TANKS, MEANS FOR DRAWING BLOOD FROM A PATIENT AND FOR PASSING THE BLOOD THROUGH SAID ELEMENT, AND MEANS FOR RETURNING THE BLOOD FORM SAID ELEMENT TO THE BLOOD STREAM OF THE PATIENT.
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) | 1958-10-17 | 1959-04-18 | 1959-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-17 | 1963-04-18 | 1963-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-17 | 1967-04-18 | 1967-10-18 | $7700.00 | Window Closed / Lapsed |