US3297894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for ionizing particles in a mass spectrometer
Assignee: SDS Data Systems Inc
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Filing: 1961-06-26
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Granted: 1967-01-10
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Expires: 1981-06-26
Abstract
No abstract record available.
Inventors
- 👤 Lawrence G Hall
- 👤 Patrick F Howden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:21
CPC Classifications
H; H01; H01J; H01J49/00; H01J49/02; H01J49/10; H01J49/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
APPARATUS FOR IONIZING PARTICLES IN AN IONIZING REGION COMPRISING: AN ELECTRON EMISSION MEANS REMOTE FROM THE IONIZING REGION; ELECTRON COLLECTOR MEANS SPACED FROM THE ELECTRON EMISSION MEANS AND REMOTE FROM THE IONIZING REGION; MEANS FOR DEVELOPING A MAGNETIC FIELD HAVING LINES OF FLUX EXTENDING ALONG A CURVE INTERSECTING THE ELECTRON EMISSION MEANS AND THE ELECTRON COLLECTOR MEANS THROUGH THE IONIZING REGION; MEANS FOR ACCLERATING ELECTRONS FROM THE ELECTRON EMISSION MEANS IN THE DIRECTION OF SAID FLUX LINES WHERE THEY INTERSECT THE EMISSION MEANS, WHEREBY ELECTRONS EMITTED BY THE ELECTRON EMISSION MEANS TRAVEL A CURVED PATH TO THE ELECTRON COLLECTOR MEANS THEREBY CONVERTING PARTICLES IN THE IONIZING REGION INTO IONS; AND MEANS FOR DEVELOPING AN ELECTRIC FIELD ACROSS THE MAGNETIC FIELD TO DRAW IONS FROM THE IONIZING REGION.
Claim 2
Dependent Claim
127 words
APPARATUS FOR IONIZING PARTICLES IN AN IONIZING REGION COMPRISING: AN ELECTRON EMISSION MEANS REMOTE FROM THE IONIZING REGION; ELECTRON COLLECTOR MEANS SPACED FROM THE ELECTRON EMISSION MEANS AND REMOTE FROM THE IONIZING REGION; MEANS FOR DEVELOPING A MAGNETIC FIELD HAVING LINES OF FLUX EXTENDING ALONG A CURVE INTERSECTING THE ELECTRON EMISSION MEANS AND THE ELECTRON COLLECTOR MEANS THROUGH THE IONIZING REGION; MEANS FOR ACCLERATING ELECTRONS FROM THE ELECTRON EMISSION MEANS IN THE DIRECTION OF SAID FLUX LINES WHERE THEY INTERSECT THE EMISSION MEANS, WHEREBY ELECTRONS EMITTED BY THE ELECTRON EMISSION MEANS TRAVEL A CURVED PATH TO THE ELECTRON COLLECTOR MEANS THEREBY CONVERTING PARTICLES IN THE IONIZING REGION INTO IONS; AND MEANS FOR DEVELOPING AN ELECTRIC FIELD ACROSS THE MAGNETIC FIELD TO DRAW IONS FROM THE IONIZING REGION.
References Cited (Backward Citations)
US2935634A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |