US3299693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas chromatographic analysis control apparatus
Assignee: EIDP Inc
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Filing: 1963-12-04
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Granted: 1967-01-24
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Expires: 1983-12-04
Abstract
No abstract record available.
Inventors
- 👤 Kieselbach Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:21
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/86; G01N30/8624; E; E21; E21B; E21B47/00; E21B47/007; G01N30/88; G01N2030/8804
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A CONTROL APPARATUS FOR A CHROMATOGRAPHIC ANALYZER PROVIDED WITH MEANS FOR REGULATING ELUTION RATES COMPRISING, IN COMBINATION, AN ANALYSIS PROGRAMMING DEVICE EFFECTUATING THE SAMPLE CHROMATOGRAPHIC ANALYSIS CYCLE IN PROGRESSION FROM SAMPLE INPUT THROUGH ELUTION STRIPPING OF SEGREGATED COMPONENTS, AN ELECTRICAL READ-OUT CIRCUIT RESPONSIVE TO THE COLUMN EFFLUENT CONCENTRATION DETECTOR OF SAID CHROMATOGRAPHIC ANALYZER HAVING, IN SERIES CONNECTION WITH SAID CONCENTRATION DETECTOR, A SIGNAL SPAN SELECTION NETWORK, A VOLTAGE AMPLIFIER, A PEAK DETECTOR
Claim 2
Dependent Claim
72 words
A CONTROL APPARATUS FOR A CHROMATOGRAPHIC ANALYZER PROVIDED WITH MEANS FOR REGULATING ELUTION RATES COMPRISING, IN COMBINATION, AN ANALYSIS PROGRAMMING DEVICE EFFECTUATING THE SAMPLE CHROMATOGRAPHIC ANALYSIS CYCLE IN PROGRESSION FROM SAMPLE INPUT THROUGH ELUTION STRIPPING OF SEGREGATED COMPONENTS, AN ELECTRICAL READ-OUT CIRCUIT RESPONSIVE TO THE COLUMN EFFLUENT CONCENTRATION DETECTOR OF SAID CHROMATOGRAPHIC ANALYZER HAVING, IN SERIES CONNECTION WITH SAID CONCENTRATION DETECTOR, A SIGNAL SPAN SELECTION NETWORK, A VOLTAGE AMPLIFIER, A PEAK DETECTOR
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) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |