US3392296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron multiplier amplifier discharge device
Assignee: Cooper Industries LLC
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Filing: 1965-08-27
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Granted: 1968-07-09
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Expires: 1985-08-27
Abstract
No abstract record available.
Inventors
- 👤 Robert F Franklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:21
CPC Classifications
H; H01; H01J; H01J43/00; H01J43/04; H01J43/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
AN ELECTRON DISCHARGE DEVICE COMPRISING, A SEALED ENVELOPE CONTAINING A CATHODE FOR THE EMISSION OF ELECTRONS AND AN ANODE FOR COLLECTING EMITTED ELECTRONS, A PLURALITY OF CYLINDRICAL SECONDARY EMISSION DYNODES MADE OF CONDUCTIVE SHEET AND MOUNTED IN AXIAL ALIGNMENT WITH THE CATHODE, SAID DYNODES INCLUDING ANGULAR LOUVERED PORTIONS DISPOSED ADJOINING SLOTS FORMED IN THE DYNODE SHEET FOR THE GENERATION OF SECONDARY ELECTRONS WHEN BOMBARDED BY OTHER ELECTRONS UNDER THE INFLUENCE OF AN ELECTRIC FIELD, A PLURALITY OF INSULATOR RINGS SECURED TO THE ENDS OF SAID DYNODES FOR HOLDING THE DYNODES IN POSITION,
Claim 2
Dependent Claim
92 words
AN ELECTRON DISCHARGE DEVICE COMPRISING, A SEALED ENVELOPE CONTAINING A CATHODE FOR THE EMISSION OF ELECTRONS AND AN ANODE FOR COLLECTING EMITTED ELECTRONS, A PLURALITY OF CYLINDRICAL SECONDARY EMISSION DYNODES MADE OF CONDUCTIVE SHEET AND MOUNTED IN AXIAL ALIGNMENT WITH THE CATHODE, SAID DYNODES INCLUDING ANGULAR LOUVERED PORTIONS DISPOSED ADJOINING SLOTS FORMED IN THE DYNODE SHEET FOR THE GENERATION OF SECONDARY ELECTRONS WHEN BOMBARDED BY OTHER ELECTRONS UNDER THE INFLUENCE OF AN ELECTRIC FIELD, A PLURALITY OF INSULATOR RINGS SECURED TO THE ENDS OF SAID DYNODES FOR HOLDING THE DYNODES IN POSITION,
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) | 1971-07-09 | 1972-01-08 | 1972-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-09 | 1976-01-08 | 1976-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-09 | 1980-01-08 | 1980-07-09 | $7700.00 | Window Closed / Lapsed |