US3192383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mass spectrometer ion collector with a secondary particle collecting electrode extending over the collector
Assignee: Associated Electrical Industries Ltd
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Filing: 1962-12-10
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Granted: 1965-06-29
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Expires: 1982-12-10
Abstract
No abstract record available.
Inventors
- 👤 Green Brian Noel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:51
CPC Classifications
H; H01; H01J; H01J49/00; H01J49/02; H01J49/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A MASS SPECTROMETER ELECTROSTATIC ANALYSER COMPRISING A COLLECTOR MEMBER INCLUDING A LAYER OF PHOTOSENSITIVE MATERIAL THAT IS SENSITIVE TO IONS, AN ELECTRODE EXTENDING OVER SAID SENSITIVE LAYER AND SPACED THEREFROM, MEANS FOR APPLYING TO SAID ELECTRODE A POTENTIAL POSITIVE WITH RESPECT TO THE POTENTIAL OF SAID SENSITIVE LAYER SO THAT SAID ELECTRODE ATTRACTS NEGATIVELY CHARGED SECONDARY PARTICLES EMITTED FROM THE SENSITIVE LAYER WHEN PRIMARY IONS STRIKE SAID SENSITIVE LAYER, AND SURFACES TO SAID ELECTRODES DEFINING A SLIT EXTENDING THROUGH SAID ELECTRODE TO ALLOW THE PASSAGE OF PRIMARY IONS TO SAID SENSITIVE LAYER.
Claim 2
Dependent Claim
92 words
A MASS SPECTROMETER ELECTROSTATIC ANALYSER COMPRISING A COLLECTOR MEMBER INCLUDING A LAYER OF PHOTOSENSITIVE MATERIAL THAT IS SENSITIVE TO IONS, AN ELECTRODE EXTENDING OVER SAID SENSITIVE LAYER AND SPACED THEREFROM, MEANS FOR APPLYING TO SAID ELECTRODE A POTENTIAL POSITIVE WITH RESPECT TO THE POTENTIAL OF SAID SENSITIVE LAYER SO THAT SAID ELECTRODE ATTRACTS NEGATIVELY CHARGED SECONDARY PARTICLES EMITTED FROM THE SENSITIVE LAYER WHEN PRIMARY IONS STRIKE SAID SENSITIVE LAYER, AND SURFACES TO SAID ELECTRODES DEFINING A SLIT EXTENDING THROUGH SAID ELECTRODE TO ALLOW THE PASSAGE OF PRIMARY IONS TO SAID SENSITIVE LAYER.
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) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |