US3352779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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
2026-10-22 20:06
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.
References Cited (Backward Citations)
US759374A
Cited
US2168306A
Cited
US2559090A
Cited
US2564306A
Cited
US2632144A
Cited
US2870776A
Cited
US2969150A
Cited
US3212642A
Cited
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 |