Patent US3352779A successfully refreshed from Google Patents.
US3352779A
Expired / Lapsed
US
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Hemodialysis system
Assignee: Sweden Freezer Manufacturing Co
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Filing: 1965-10-23
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Granted: 1967-11-14
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Expires: 1985-10-23
Abstract
No abstract record available.
Inventors
- 👤 Avery J Austin
- 👤 Robert S Patch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:03
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/14; A61M1/16; A61M1/168; A61M1/1686; A61M1/1654; A61M1/1656; A61M1/1657; A61M1/166; A61M1/1664; A61M1/1668; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/0329; Y10T137/034; Y10T137/2496; Y10T137/2499; Y10T137/2509; Y10T137/2514; Y10T137/2516
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
77 words
A DIALYSIS SYSTEM COMPRISING DIALYSIS STATIONS, MEANS FOR SUPPLYING DIALYSATE CONCENTRATE, MEANS FOR SUPPLYING CONTROLLED-TEMPERATURE DILUENT, RESERVOIR MEANS FOR STORING A DIALYSIS SOLUTION MIXING MEANS COMMUNICATING WITH SAID RESERVOIR MEANS FOR INTERMITTENTLY MIXING SAID DIALYSATE CONCENTRATE WITH SAID CONTROLLED-TEMPERATURE DILUENT IN PREDETERMINED PROPORTIONS TO PROVIDE SAID DIALYSIS SOLUTION AND TO MAINTAIN A DIALYSIS SOLUTION VOLUME IN SAID RESERVOIR MEANS WITHIN PREDETERMINED LIMITS, AND MEANS FOR SELECTIVELY PASSING DIALYSIS SOLUTION FROM SAID RESERVOIR MEANS TO SAID DIALYSIS STATIONS.
Claim 2
Dependent Claim
77 words
A DIALYSIS SYSTEM COMPRISING DIALYSIS STATIONS, MEANS FOR SUPPLYING DIALYSATE CONCENTRATE, MEANS FOR SUPPLYING CONTROLLED-TEMPERATURE DILUENT, RESERVOIR MEANS FOR STORING A DIALYSIS SOLUTION MIXING MEANS COMMUNICATING WITH SAID RESERVOIR MEANS FOR INTERMITTENTLY MIXING SAID DIALYSATE CONCENTRATE WITH SAID CONTROLLED-TEMPERATURE DILUENT IN PREDETERMINED PROPORTIONS TO PROVIDE SAID DIALYSIS SOLUTION AND TO MAINTAIN A DIALYSIS SOLUTION VOLUME IN SAID RESERVOIR MEANS WITHIN PREDETERMINED LIMITS, AND MEANS FOR SELECTIVELY PASSING DIALYSIS SOLUTION FROM SAID RESERVOIR MEANS TO SAID DIALYSIS STATIONS.
Claim 3
Dependent Claim
35 words
A DIALYSIS SYSTEM ACCORDING TO CLAIM 1 IN WHICH SAID DIALYSATE CONCENTATE SUPPLY MEANS COMPRISE DIALYSATE CHEMICALS TO FORM A DIALYSATE CONCENTRATE SOLUTION, AND DIALYSATE CONCENTATE STORING MEANS FOR STORING A SUPPLY OF SAID SOLUTION.
Claim 4
Dependent Claim
51 words
A DIALYSIS SYSTEM ACCORDING TO CLAIM 2 AND HAVING QUICK DISCONNECT MEANS FOR ALTERNATIVELY DETACHABLY COUPLING THE DIALYSATE CONCENTRATE MIXING MEANS TO THE DIALYSATE CONCENTRATE STORING MEANS OR TO A WATER SUPPLY, SAID QUICK DISCONNECTED MEANS BEING CONSTRUCTED TO PRECULDE CONNECTION OF SAID WATER SUPPLY TO SAID DIALYSATE CONCENTRATE STORING MEANS.
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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) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |