US3098480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for fluid transfusion
Assignee: Individual
•
Filing: 1960-11-29
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Granted: 1963-07-23
•
Expires: 1980-11-29
Abstract
No abstract record available.
Inventors
- 👤 William D Worthington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:00
CPC Classifications
A; A61; A61M; A61M60/00; A61M60/20; A61M60/247; A61M60/253; A61M60/258; A61M1/00; A61M1/71; A61M1/77; A61M1/772; A61M60/10; A61M60/104; A61M60/30; A61M60/39; A61M60/40; A61M60/424; A61M60/438; A61M60/441; A61M60/80; A61M60/845; A61M60/851; A61M1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A UNITARY SYSTEM FOR BLOOD EXCHANGE TRANSFUSION FOR PATIENTS INCLUDING A PUMP AND VALVE CHAMBERS AND WHEREIN REPLACEMENT BLOOD IS EFFECTIVELY SUBSTITUTED FOR THE BLOOD WITHDRAWN FROM THE PATIENT, COMPRISING STORAGE MEANS FOR REPLACEMENT BLOOD, DISPOSAL MEANS FOR THE WITHDRAWN BLOOD AND CATHETER MEANS FOR COMMUNICATING WITH THE BLOOD STREAM OF THE PATIENT IN WHICH EACH OF SAID MEANS ARE INTERCONNECTED BY MEANS OF FLUID PASSAGEWAYS AND SAID FLUID PASSAGEWAYS ALSO ARE CONNECTED TO SAID PUMP AND VALVE CHAMBERS, A POWER SOURCE, CONTINUOUSLY ROTATABLE DRIVE MEANS DRIVEN FROM SAID POWER SOURCE, CYLINDER MEANS DEFINING A FIRST CHAMBER AND A SECOND CHAMBER, PISTON MEANS SLIDABLY MOUNTED IN SAID CHAMBERS, MEANS EXTENDNG FROM SAID DRIVE MEANS TO SAID PISTON MEANS FOR IMPARTING A SIMULTANEOUS RECIPROCATING MOTION THERETO CONSISTING OF CONTINUOUS SUCTION STROKES AND PRESSURE STROKES, AXIALLY VALVE MEANS
Claim 2
Dependent Claim
136 words
A UNITARY SYSTEM FOR BLOOD EXCHANGE TRANSFUSION FOR PATIENTS INCLUDING A PUMP AND VALVE CHAMBERS AND WHEREIN REPLACEMENT BLOOD IS EFFECTIVELY SUBSTITUTED FOR THE BLOOD WITHDRAWN FROM THE PATIENT, COMPRISING STORAGE MEANS FOR REPLACEMENT BLOOD, DISPOSAL MEANS FOR THE WITHDRAWN BLOOD AND CATHETER MEANS FOR COMMUNICATING WITH THE BLOOD STREAM OF THE PATIENT IN WHICH EACH OF SAID MEANS ARE INTERCONNECTED BY MEANS OF FLUID PASSAGEWAYS AND SAID FLUID PASSAGEWAYS ALSO ARE CONNECTED TO SAID PUMP AND VALVE CHAMBERS, A POWER SOURCE, CONTINUOUSLY ROTATABLE DRIVE MEANS DRIVEN FROM SAID POWER SOURCE, CYLINDER MEANS DEFINING A FIRST CHAMBER AND A SECOND CHAMBER, PISTON MEANS SLIDABLY MOUNTED IN SAID CHAMBERS, MEANS EXTENDNG FROM SAID DRIVE MEANS TO SAID PISTON MEANS FOR IMPARTING A SIMULTANEOUS RECIPROCATING MOTION THERETO CONSISTING OF CONTINUOUS SUCTION STROKES AND PRESSURE STROKES, AXIALLY VALVE 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) | 1966-07-22 | 1967-01-21 | 1967-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-22 | 1971-01-21 | 1971-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-22 | 1975-01-21 | 1975-07-23 | $7700.00 | Window Closed / Lapsed |