US3563083A
Expired / Lapsed
US
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Automatic interface for gas chromatograph-mass spectrometer system
Assignee: Varian Medical Systems Inc
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Filing: 1968-01-15
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Granted: 1971-02-16
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Expires: 1988-01-15
Abstract
Abstract AN ANALYTICAL SYSTEM IS DESCRIBED INCLUDING A COMBINATION OF A GAS CHROMATOGRAPH AND A MASS SPECTROMETER ALONG WITH AN AUTOMATIC INTERFACE APPARATUS FOR RENDERING THE TWO DISSIMILAR COMPONENTS HIGHLY COMPATIBLE IN A CONTINUOUS FLOW QUANTITATIVE-QUALITATIVE ANALYZING SYSTEM. THE INTERFACE INCLUDES AN AUTOMATIC CONTROL CIRCUIT FOR DETECTING THE OUTPUT OF THE GAS CHROMATOGRAPH AND SELECTING FROM EACH GC PEAK A PREDETERMINED QUANTITY OF SAMPLE FOR PRESENTATION TO THE ION SOURCE OF THE MASS SPECTOMETER.
Inventors
- 👤 Hanspeter Benz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:16
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/62; G01N30/72; G01N30/7206; H; H01; H01J; H01J49/00; H01J49/02; H01J49/022; G01N30/80; G01N30/82; G01N30/86; G01N30/8603; G01N30/8606
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |