US2697182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube for intensification of images
Assignee: Individual
•
Filing: 1952-01-08
•
Granted: 1954-12-14
•
Expires: 1972-01-08
Abstract
No abstract record available.
Inventors
- 👤 Sheldon Edward Emanuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:45
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/50; H01J31/508; H01J29/00; H01J29/86; H01J29/89; H01J2229/00; H01J2229/89; H01J2229/893
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
AN IMAGE SENSITIVE TUBE COMPRISING IN COMBINATION A PHOTOCATHODE OF A PHOTO-EMISSIVE MATERIAL FOR RECEIVING AN IMAGE AND CONVERTING SAID IMAGE INTO A FIRST ELECTRON BEAM HAVING THE PATTERN OF SAID IMAGE, A COMPOSITE SCREEN CONSISTING OF A LIGHT OPAQUE LAYER TRANSMITTING SAID ELECTRON BEAM FROM SAID PHOTOCATHODE, A FLUORESENT LAYER ADJACENT SAID LIGHT OPAQUE LAYER FOR CONVERTING SAID ELECTRON BEAM INTO A FLUORESENCE LIGHT IMAGE, A LIGHT TRANSPARENT SEPARATING LAYER DISCONTINUOUS FROM WALLS OF SAID TUBE AND OF A PHOTOEMISSIVE LAYER RECEIVING LIGHT FROM SAID FLUORESCENT LAYER THROUGH SAID SEPARATING LAYER AND EMITTING IN RESPONSE TO SAID LIGHT THE SECOND ELECTRON BEAM HAVING THE PATTERN OF SAID FIRST ELECTRON BEAM AND AN ELECTRON REACTIVE SCREEN FOR RECEIVING SAID SECOND ELECTRON BEAM AND CONVERTING SAID ELECTON BEAM INTO AN IMAGE.
Claim 2
Dependent Claim
130 words
AN IMAGE SENSITIVE TUBE COMPRISING IN COMBINATION A PHOTOCATHODE OF A PHOTO-EMISSIVE MATERIAL FOR RECEIVING AN IMAGE AND CONVERTING SAID IMAGE INTO A FIRST ELECTRON BEAM HAVING THE PATTERN OF SAID IMAGE, A COMPOSITE SCREEN CONSISTING OF A LIGHT OPAQUE LAYER TRANSMITTING SAID ELECTRON BEAM FROM SAID PHOTOCATHODE, A FLUORESENT LAYER ADJACENT SAID LIGHT OPAQUE LAYER FOR CONVERTING SAID ELECTRON BEAM INTO A FLUORESENCE LIGHT IMAGE, A LIGHT TRANSPARENT SEPARATING LAYER DISCONTINUOUS FROM WALLS OF SAID TUBE AND OF A PHOTOEMISSIVE LAYER RECEIVING LIGHT FROM SAID FLUORESCENT LAYER THROUGH SAID SEPARATING LAYER AND EMITTING IN RESPONSE TO SAID LIGHT THE SECOND ELECTRON BEAM HAVING THE PATTERN OF SAID FIRST ELECTRON BEAM AND AN ELECTRON REACTIVE SCREEN FOR RECEIVING SAID SECOND ELECTRON BEAM AND CONVERTING SAID ELECTON BEAM INTO AN IMAGE.
References Cited (Backward Citations)
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Cited
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US2214973A
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US2344043A
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US2555423A
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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) | 1957-12-13 | 1958-06-14 | 1958-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-13 | 1962-06-14 | 1962-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-13 | 1966-06-14 | 1966-12-14 | $7700.00 | Window Closed / Lapsed |