Patent US5292330A successfully refreshed from Google Patents.
US3331950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Particle distribution plotting apparatus
Assignee: Coulter Electronics Inc
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Filing: 1966-07-11
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Granted: 1967-07-18
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Expires: 1986-07-11
Abstract
No abstract record available.
Inventors
- 👤 Wallace H Coulter
- 👤 Siegelman Abraham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:45
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/10; G01N15/1031; G01N15/12; G01N15/131; G01N15/132
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A PARTICLE DISTRIBUTION PLOTTING APPARATUS COMPRISING: PARTICLE DETECTING ORIFICE MEANS PROVIDING A SIGNAL FOR EACH DETECTED PARTICLE, EACH SIGNAL HAVING A PARAMETER WHICH IS A FUNCTION OF THE SIZE OF EACH RESPECTIVELY DETECTED PARTICLE, PARTICLE DETECTION CONTROL MEANS COUPLED TO SAID PARTICLE DETECTING ORIFICE MEANS AND RECEIVING EACH SAID SIGNAL, AND SAID DETECTION CONTROL MEANS PASSING FROM AN OUTPUT THEREOF ONLY SIGNALS REPRESENTING PARTICLES WITHIN A PREDETERMINED SIZE RANGE, PROGRAMMING MEANS COUPLED TO SAID PARTICLE DETECTION CONTROL MEANS AND REGULATING SAID SIZE RANGE,
Claim 2
Dependent Claim
83 words
A PARTICLE DISTRIBUTION PLOTTING APPARATUS COMPRISING: PARTICLE DETECTING ORIFICE MEANS PROVIDING A SIGNAL FOR EACH DETECTED PARTICLE, EACH SIGNAL HAVING A PARAMETER WHICH IS A FUNCTION OF THE SIZE OF EACH RESPECTIVELY DETECTED PARTICLE, PARTICLE DETECTION CONTROL MEANS COUPLED TO SAID PARTICLE DETECTING ORIFICE MEANS AND RECEIVING EACH SAID SIGNAL, AND SAID DETECTION CONTROL MEANS PASSING FROM AN OUTPUT THEREOF ONLY SIGNALS REPRESENTING PARTICLES WITHIN A PREDETERMINED SIZE RANGE, PROGRAMMING MEANS COUPLED TO SAID PARTICLE DETECTION CONTROL MEANS AND REGULATING SAID SIZE RANGE,
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |