US3309032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cell fractionator apparatus
Assignee: IVAN SORVALL Inc
•
Filing: 1964-03-23
•
Granted: 1967-03-14
•
Expires: 1984-03-23
Abstract
No abstract record available.
Inventors
- 👤 Charles J Filz
- 👤 Blum Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:16
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/28; G01N1/286; C; C12; C12M; C12M47/00; C12M47/06; C12N; C12N1/00; C12N1/06; C12N1/066
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
CELL FRACTIONTING APPARATUS COMPRISING A BLOCK, A COMPRESSION CHAMBER IN SAID BLOCK, AND EXPANSION CHAMBER IN SAID BLOCK AXIALLY ALIGNED WITH SAID COMPRESSION CHAMBER, A VALVE SEAT BETWEEN SAID COMPRESSION CHAMBER AND SAID EXPANSION CHAMBER, A VALVE MEMBER MOVABLE LONGITUDINALLY WITHIN SAID COMPRESSION CHAMBER AND COOPERATING WITH SAID VALVE SEAT, THE ENTRY PORTION OF SAID EXPANSION CHAMBER BEING CONICAL IN SHAPE AND THE APEX THEREOF TERMINATING IN SAID VALVE SEAT, MEANS FOR INTRODUCING BIOLOGICAL SPECIMENS UNDER HIGH PRESSURE INTO SAID COMPRESSION CHAMBER, A PLURALITY OF RADIALLY ARRAYED CHANNELS IN SAID BLOCK, THE INNER ENDS OF SAID CHANNELS COMMUNICATING IN A CIRCULAR ARRAY WITH THE CONICAL PORTION OF SAID EXPANSION CHAMBER NEAR SAID VALVE SEAT AND MEANS FOR PASSING A COOLING MEDIUM SIMULTANEOUSLY THROUGH ALL OF SAID CHANNELS INTO SAID EXPANSION CHAMBER.
Claim 2
Dependent Claim
131 words
CELL FRACTIONTING APPARATUS COMPRISING A BLOCK, A COMPRESSION CHAMBER IN SAID BLOCK, AND EXPANSION CHAMBER IN SAID BLOCK AXIALLY ALIGNED WITH SAID COMPRESSION CHAMBER, A VALVE SEAT BETWEEN SAID COMPRESSION CHAMBER AND SAID EXPANSION CHAMBER, A VALVE MEMBER MOVABLE LONGITUDINALLY WITHIN SAID COMPRESSION CHAMBER AND COOPERATING WITH SAID VALVE SEAT, THE ENTRY PORTION OF SAID EXPANSION CHAMBER BEING CONICAL IN SHAPE AND THE APEX THEREOF TERMINATING IN SAID VALVE SEAT, MEANS FOR INTRODUCING BIOLOGICAL SPECIMENS UNDER HIGH PRESSURE INTO SAID COMPRESSION CHAMBER, A PLURALITY OF RADIALLY ARRAYED CHANNELS IN SAID BLOCK, THE INNER ENDS OF SAID CHANNELS COMMUNICATING IN A CIRCULAR ARRAY WITH THE CONICAL PORTION OF SAID EXPANSION CHAMBER NEAR SAID VALVE SEAT AND MEANS FOR PASSING A COOLING MEDIUM SIMULTANEOUSLY THROUGH ALL OF SAID CHANNELS INTO SAID EXPANSION CHAMBER.
References Cited (Backward Citations)
US2021143A
Cited
US2841384A
Cited
US2893216A
Cited
US3172546A
Cited
US3165266A
Cited
US3206755A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |