US3340470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow-through sample apparatus for use with electrical particle study device
Assignee: Coulter Electronics Inc
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Filing: 1964-09-23
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Granted: 1967-09-05
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Expires: 1984-09-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph R Coulter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:35
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/10; G01N15/1031; G01N15/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A FLOW-THROUGH SYSTEM FOR USE WITH A COULTER TYPE ELECTRONIC PARTICLE COUNTING DEVICE WHICH COMPRISES A VESSEL OF INSULATING MATERIAL ADAPTED TO RECEIVE THE APERTURE TUBE OF SAID DEVICE THEREIN, MEANS FOR DRIPPING A CONTROLLED FLOW FLUID SAMPLE SUSPENSION FROM A SOURCE THEREOF INTO THE TOP OF SAID VESSEL, MEANS FOR CONTROLLABLY DRAINING THE SAMPLE SUSPENSION FROM THE BOTTOM OF THE VESSEL AND INCLUDING A SOURCE OF VACUUM AND A DRIP CHAMBER SERIALLY ARRANGED BETWEEN THE SOURCE OF VACUUM AND SAID VESSEL TO BREAK UP THE FLOW OF SUSPENSION EMERGING FROM THE VESSEL INTO DISCRETE DROPS, AN ENTRANT TUBE HAVING A DISCHARGE END IN SAID CHAMBER, AND BAFFLE MEANS DISPOSED WITHIN THE SAID CHAMBER TO PREVENT ESTABLISHMENT OF
Claim 2
Dependent Claim
118 words
A FLOW-THROUGH SYSTEM FOR USE WITH A COULTER TYPE ELECTRONIC PARTICLE COUNTING DEVICE WHICH COMPRISES A VESSEL OF INSULATING MATERIAL ADAPTED TO RECEIVE THE APERTURE TUBE OF SAID DEVICE THEREIN, MEANS FOR DRIPPING A CONTROLLED FLOW FLUID SAMPLE SUSPENSION FROM A SOURCE THEREOF INTO THE TOP OF SAID VESSEL, MEANS FOR CONTROLLABLY DRAINING THE SAMPLE SUSPENSION FROM THE BOTTOM OF THE VESSEL AND INCLUDING A SOURCE OF VACUUM AND A DRIP CHAMBER SERIALLY ARRANGED BETWEEN THE SOURCE OF VACUUM AND SAID VESSEL TO BREAK UP THE FLOW OF SUSPENSION EMERGING FROM THE VESSEL INTO DISCRETE DROPS, AN ENTRANT TUBE HAVING A DISCHARGE END IN SAID CHAMBER, AND BAFFLE MEANS DISPOSED WITHIN THE SAID CHAMBER TO PREVENT ESTABLISHMENT OF
References Cited (Backward Citations)
US3165692A
Cited
US3165693A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |