Patent US3271672A successfully refreshed from Google Patents.
US3271672A
Expired / Lapsed
US
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Particle studying device control circuit
Assignee: Coulter Electronics Inc
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Filing: 1965-10-04
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Granted: 1966-09-06
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Expires: 1985-10-04
Abstract
No abstract record available.
Inventors
- 👤 Michael I Henderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:06
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/10; G01N15/1031; G01N15/12; G01N15/131; G01N15/132; G01N2015/135; G01N2015/136
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A PARTICLE ANALYZER, FOR STUDYING PARTICLES SUSPENDED IN A FLUID, COMPRISING: (A) FLUID SUSPENDED PARTICLE SCANNING MEANS, HAVING A PAIR OF SCANNER ELECTRODES, FOR GENERATING SCANING SIGNALS, EACH SIGNAL HAVING A PARAMETER WHICH IS A FUNCTION OF A PHYSICAL PROPERTY OF A RESPECTIVE SCANNED PARTICLE; (B) MEANS FOR ANALYZING THE SCANNING SIGNALS; (C) LIQUID MANOMETER MEANS FOR METERING THE VOLUME OF FLUID SCANNED, HAVING A METERING SECTION; (D) MEANS FOR SENSING THE PASSAGE OF TEH MANOMETER LIQUID PAST A FIRST POINT IN THE METERING SECTION AND FOR GENERATING A FIRST PROGRAM SIGNAL; (E) MEANS FOR SENSING THE PASSAGE OF THE MANOMETER LIQUID PAST A SECOND POINT IN THE METERING SECTION AND FOR GENERATING A SECOND PROGRAM SIGNAL; (F) MEANS FOR SENSING THE PASSAGE FO THE MANOMETER LIQUID PAST A THIRD POINT IN THE METERING SECTION AND FOR GENERATING A THIRD PROGRAM SIGNAL;
Claim 2
Dependent Claim
142 words
A PARTICLE ANALYZER, FOR STUDYING PARTICLES SUSPENDED IN A FLUID, COMPRISING: (A) FLUID SUSPENDED PARTICLE SCANNING MEANS, HAVING A PAIR OF SCANNER ELECTRODES, FOR GENERATING SCANING SIGNALS, EACH SIGNAL HAVING A PARAMETER WHICH IS A FUNCTION OF A PHYSICAL PROPERTY OF A RESPECTIVE SCANNED PARTICLE; (B) MEANS FOR ANALYZING THE SCANNING SIGNALS; (C) LIQUID MANOMETER MEANS FOR METERING THE VOLUME OF FLUID SCANNED, HAVING A METERING SECTION; (D) MEANS FOR SENSING THE PASSAGE OF TEH MANOMETER LIQUID PAST A FIRST POINT IN THE METERING SECTION AND FOR GENERATING A FIRST PROGRAM SIGNAL; (E) MEANS FOR SENSING THE PASSAGE OF THE MANOMETER LIQUID PAST A SECOND POINT IN THE METERING SECTION AND FOR GENERATING A SECOND PROGRAM SIGNAL; (F) MEANS FOR SENSING THE PASSAGE FO THE MANOMETER LIQUID PAST A THIRD POINT IN THE METERING SECTION AND FOR GENERATING A THIRD PROGRAM SIGNAL;
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |