US3134898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas chromatography with means to flow ionization particles into the ionization chamber
Assignee: Beckman Coulter Inc
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Filing: 1960-06-27
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Granted: 1964-05-26
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Expires: 1980-06-27
Abstract
No abstract record available.
Inventors
- 👤 Maurice R Burnell
- 👤 Richard A Foster
- 👤 William S Gallaway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:26
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/62; G01N27/64; G01N27/66; G01N30/00; G01N30/02; G01N30/62; G01N30/64; G01N30/70; H; H01; H01J; H01J17/00; H01J17/02; H01J17/30; H01J41/00; H01J41/02; H01J41/08; H01J47/00; H01J47/02; H01J47/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
IN AN IONIZATION-TYPE DETECTOR FOR A GAS CHROMATOGRAPH OR THE LIKE PRODUCING A SAMPLE GAS STREAM FOR ANALYSIS, THE COMBINATION OF: A HOUSING INCLUDING AN ELECTRONGENERATING SECTION AND AN IONIZATION CHAMBER WITH A FLOW PATH THEREBETWEEN INIZATION-MEASURING MEANS FOR GENERATING AN ELECTRIC FIELD WITHIN SAID CHAMBER; A SOURCE OF LOW ENERGY ELECTRONS WITHIN SAID ELECTRON-GENERATING SECTION; A FIRST GAS INGLE FOR DIRECTING A STREAM OF RARE GAS INTO SAID ELECTRON-GENERATING SECTION OF SAID HOUSING; A GAS OUTLET FROM SAID CHAMBER; AND A SECOND GAS INLET FOR DIRECTING THE STREAM OF SAMPLE GAS INTO SAID CHAMBER, FOR FLOW FROM SAID FIRST AND SECOND INLETS, THROUGH SAID IONIZATION CHAMBER, AND OUT SAID OUTLET, WITH SAID STREAM OF RARE GAS CARRYING ELECTRONS INTO SAID CHAMBER AND MIXING WITH THE SAMPLE GAS STREAM.
Claim 2
Dependent Claim
129 words
IN AN IONIZATION-TYPE DETECTOR FOR A GAS CHROMATOGRAPH OR THE LIKE PRODUCING A SAMPLE GAS STREAM FOR ANALYSIS, THE COMBINATION OF: A HOUSING INCLUDING AN ELECTRONGENERATING SECTION AND AN IONIZATION CHAMBER WITH A FLOW PATH THEREBETWEEN INIZATION-MEASURING MEANS FOR GENERATING AN ELECTRIC FIELD WITHIN SAID CHAMBER; A SOURCE OF LOW ENERGY ELECTRONS WITHIN SAID ELECTRON-GENERATING SECTION; A FIRST GAS INGLE FOR DIRECTING A STREAM OF RARE GAS INTO SAID ELECTRON-GENERATING SECTION OF SAID HOUSING; A GAS OUTLET FROM SAID CHAMBER; AND A SECOND GAS INLET FOR DIRECTING THE STREAM OF SAMPLE GAS INTO SAID CHAMBER, FOR FLOW FROM SAID FIRST AND SECOND INLETS, THROUGH SAID IONIZATION CHAMBER, AND OUT SAID OUTLET, WITH SAID STREAM OF RARE GAS CARRYING ELECTRONS INTO SAID CHAMBER AND MIXING WITH THE SAMPLE GAS STREAM.
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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) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |