US3114044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron multiplier isolating electrode structure
Assignee: Westinghouse Electric Corp
•
Filing: 1959-09-30
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Granted: 1963-12-10
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Expires: 1979-09-30
Abstract
No abstract record available.
Inventors
- 👤 Ernest J Sternglass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:39
CPC Classifications
H; H01; H01J; H01J43/00; H01J43/04; H01J43/06; H01J43/18; H01J43/22; A; A47; A47J; A47J19/00; A47J19/02; A47J19/027; H01J29/00; H01J29/02; H01J29/023; H01J29/10; H01J29/36; H01J29/38; H01J31/00; H01J31/08; H01J31/50; H01J31/506; H01J40/00; H01J40/02; H01J40/04; H01J40/06; H01J9/00; H01J9/02; H01J9/12; H01J9/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
AN ELECTRON MULTIPLIER DEVICE COMPRISING: A CATHODE AND A DYNODE INCLUDING A SUBSTANTIALLY CONTINUOUS LAYER OF TRANSMISSION SECONDARY ELECTRON EMITTING MATERIAL CAPABLE OF SECONDARY ELECTRON EMISSION FROM THE SIDE THEREOF REMOTE FROM SAID CATHODE UPON BOMBARDMENT BY ELECTRONS FROM SAID CATHODE; MEANS TO SUPPORT SAID CATHODE AND SAID DYNODE INCLUDING AN ANNULAR INSULATING MEMBER EXTENDING COMPLETELY AROUND THE ELECTRON BEAM PATH BETWEEN SAID CATHODE AND SAID DYNODE SUBSTANTIALLY TO ISOLATE, IN COOPERATION WITH SAID CONTINUOUS LAYER, THE SPACE BETWEEN SAID CATHODE AND SAID DYNODE FROM THE REMAINDER OF SAID DEVICE.
Claim 2
Dependent Claim
90 words
AN ELECTRON MULTIPLIER DEVICE COMPRISING: A CATHODE AND A DYNODE INCLUDING A SUBSTANTIALLY CONTINUOUS LAYER OF TRANSMISSION SECONDARY ELECTRON EMITTING MATERIAL CAPABLE OF SECONDARY ELECTRON EMISSION FROM THE SIDE THEREOF REMOTE FROM SAID CATHODE UPON BOMBARDMENT BY ELECTRONS FROM SAID CATHODE; MEANS TO SUPPORT SAID CATHODE AND SAID DYNODE INCLUDING AN ANNULAR INSULATING MEMBER EXTENDING COMPLETELY AROUND THE ELECTRON BEAM PATH BETWEEN SAID CATHODE AND SAID DYNODE SUBSTANTIALLY TO ISOLATE, IN COOPERATION WITH SAID CONTINUOUS LAYER, THE SPACE BETWEEN SAID CATHODE AND SAID DYNODE FROM THE REMAINDER OF SAID DEVICE.
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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) | 1966-12-09 | 1967-06-10 | 1967-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-09 | 1971-06-10 | 1971-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-09 | 1975-06-10 | 1975-12-10 | $7700.00 | Window Closed / Lapsed |