Patent US5161886C1 successfully refreshed from Google Patents.
US3207997A
Expired / Lapsed
US
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Image tube target locating device
Assignee: TDK Micronas GmbH
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Filing: 1962-06-29
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Granted: 1965-09-21
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Expires: 1982-06-29
Abstract
No abstract record available.
Inventors
- 👤 Edward H Eberhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:11
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/58; H01J29/62; H01J29/622; H01J29/624; H01J31/00; H01J31/08; H01J31/50; H01J31/506
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
A TARGET-LOCATING TUBE COMPRISING A TUBULAR ENVELOPE HAVING OPPOSITE ENDS AND AN AXIS EXTENDING BETWEEN AREA ENDS, A PHOTELECTRIC CATHODE HAVING AN EXTENDED AREA IN ONE END OF SAID ENVELOPE, SAID CATHODE LYING IN A PLANE SUBSTANTIALLY NORMAL TO SAID AXIS, MEANS FOR FOCUSING AN ELECTRON IMAGE EMITTED BY SAID CATHODE INTO A FOCAL PLANE NORMAL TO SAID AXIS, A DYNODE HAVING A CONTINUOUS SECONDARY EMISSIVE IMAGE AND SUPPORTED IN A PLANE SUBSTANTIALLY SAID ELECTRON IMAGE AND SUPPORTED IN A PLANE SUBSTANTIALLY PARALLEL TO SAID FOCAL PLANE ON THE SIDE OPPOSITE SAID CATHODE, A PAIR OF STRAIGHT CONDUCTORS CONNECTED TO AND CROSSING EACH AT RIGHT AND BEING SUPPORTED IN SAID FOCAL PLANE BETWEEN SAID CATHODE AND DYNODE, SAID PARI OF CONDUCTORS LYING IN TWO INTERSECTING PLANES, RESPECTIVLY, WHICH ARE NORMAL TO EACH OTHER AND TO SAID FOCAL PLANE, SAID DYNODE SURFACE BEING AXIALLY SPACED FROM BUT ADJACENT TO SAID PAIR OF CONDUCTORS AND BEING
Claim 2
Dependent Claim
154 words
A TARGET-LOCATING TUBE COMPRISING A TUBULAR ENVELOPE HAVING OPPOSITE ENDS AND AN AXIS EXTENDING BETWEEN AREA ENDS, A PHOTELECTRIC CATHODE HAVING AN EXTENDED AREA IN ONE END OF SAID ENVELOPE, SAID CATHODE LYING IN A PLANE SUBSTANTIALLY NORMAL TO SAID AXIS, MEANS FOR FOCUSING AN ELECTRON IMAGE EMITTED BY SAID CATHODE INTO A FOCAL PLANE NORMAL TO SAID AXIS, A DYNODE HAVING A CONTINUOUS SECONDARY EMISSIVE IMAGE AND SUPPORTED IN A PLANE SUBSTANTIALLY SAID ELECTRON IMAGE AND SUPPORTED IN A PLANE SUBSTANTIALLY PARALLEL TO SAID FOCAL PLANE ON THE SIDE OPPOSITE SAID CATHODE, A PAIR OF STRAIGHT CONDUCTORS CONNECTED TO AND CROSSING EACH AT RIGHT AND BEING SUPPORTED IN SAID FOCAL PLANE BETWEEN SAID CATHODE AND DYNODE, SAID PARI OF CONDUCTORS LYING IN TWO INTERSECTING PLANES, RESPECTIVLY, WHICH ARE NORMAL TO EACH OTHER AND TO SAID FOCAL PLANE, SAID DYNODE SURFACE BEING AXIALLY SPACED FROM BUT ADJACENT TO SAID PAIR OF CONDUCTORS AND BEING
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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |