US3271608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray vidicon target assembly
Assignee: Machlett Laboratories Inc
•
Filing: 1962-04-30
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Granted: 1966-09-06
•
Expires: 1982-04-30
Abstract
No abstract record available.
Inventors
- 👤 Rome Martin
- 👤 Harold O W Jordan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:06
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/49; H01J29/00; H01J29/02; H01J29/026; H01J29/10; H01J29/36; H01J29/39; H01J29/45; H01J29/458; H01J31/26; H01J31/48; H01J5/00; H01J5/02; H01J5/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
AN X-RAY SENSITIVE ELECTRON DISCHARGE DEVICE COMPRISING AN EVACUATED DIELECTRIC ENVELOPE, A SOURCE OF ELECTRONS IN ONE END OF THE ENVELOPE, AND A FACEPLATE ASSEMBLY SEALING THE OPPOSITE END OF THE ENVELOPE, SAID FACEPLATE ASSEMBLY COMPRISING A BERYLLIUM DISC ON THE OUTER SUR FACE THEREOF, SAID DISC BEING TRANSPARENT TO X-RADIATION AND OPAQUE TO VISIBLE LIGHT, A LAYER OF X-RAY SENSITIVE PHOTOCONDUCTIVE MATERIAL ON THE INNER SURFACE THEREOF SAID MATERIAL BEING NONCOMPATIBLE WITH BERYLLIUM AND BEING EXPOSED TO ELECTRONS FROM SAID SOURCE, AND MEANS BETWEEN SAID BERYLLIUM DISC AND PHOTOCONDUCTIVE MATERIAL FOR PREVENTING REACTION BETWEEN THE PHOTOCONDUCTIVE MATERIAL AND THE BERYLLIUM DISC.
Claim 2
Dependent Claim
102 words
AN X-RAY SENSITIVE ELECTRON DISCHARGE DEVICE COMPRISING AN EVACUATED DIELECTRIC ENVELOPE, A SOURCE OF ELECTRONS IN ONE END OF THE ENVELOPE, AND A FACEPLATE ASSEMBLY SEALING THE OPPOSITE END OF THE ENVELOPE, SAID FACEPLATE ASSEMBLY COMPRISING A BERYLLIUM DISC ON THE OUTER SUR FACE THEREOF, SAID DISC BEING TRANSPARENT TO X-RADIATION AND OPAQUE TO VISIBLE LIGHT, A LAYER OF X-RAY SENSITIVE PHOTOCONDUCTIVE MATERIAL ON THE INNER SURFACE THEREOF SAID MATERIAL BEING NONCOMPATIBLE WITH BERYLLIUM AND BEING EXPOSED TO ELECTRONS FROM SAID SOURCE, AND MEANS BETWEEN SAID BERYLLIUM DISC AND PHOTOCONDUCTIVE MATERIAL FOR PREVENTING REACTION BETWEEN THE PHOTOCONDUCTIVE MATERIAL AND THE BERYLLIUM DISC.
References Cited (Backward Citations)
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US2919362A
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US2989662A
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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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |