US3264514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatic planar electron beam focusing
Assignee: Individual
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Filing: 1962-07-02
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Granted: 1966-08-02
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Expires: 1982-07-02
Abstract
No abstract record available.
Inventors
- 👤 Burton J Udelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:45
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/02; H01J23/08; H01J23/083
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
192 words
IN AN ELECTRON SPACE-DISCHARGE DEVICE OF THE TYPE HAVING A CATHODE ADAPTED TO ISSUE A SHEET ELECTRON BEAM TOWARD A LONGITUDINALLY-SPACED COLLECTOR, A FOCUSING SYSTEM COMPRISING A FIRST PAIR OF ELECTRODES AND A SECOND PAIR OF ELECTRODES, WHEREIN: (A) THE ELECTRODES OF SAID FIRST PAIR ARE ELECTRICALLY CONNECTED TO EACH OTHER AND TO A FIRST CIRCUIT POINT AND THE ELECTRODE OF SAID SECOND PAIR ARE ELECTRICALLY CONNECTED TO EACH OTHER AND TO A SECOND CIRCUIT POINT, MEANS BEING PROVIDED TO MAINTAIN THE POTENTIAL AT SAID FIRST CIRCUIT POINT POSITIVE WITH RESPECT TO SAID SECOND CIRCUIT POINT, (B) THE FIRST ELECTRODE OF EACH PAIR IS POSITIONED OPPOSITE THE SECOND ELECTRODE OF EACH PAIR, THE BEAM PASSING BETWEEN THE FIRST ELECTRODE AND THE SECOND ELECTRODE, (C) THE ELECTRODES OF SAID FIRST PAIR ARE LONGITUDINALLY SPACED FROM THE ELECTRODES OF SAID SECOND PAIR, (D) EACH ELECTRODE IS AT LEAST APPROXIMATELY AS WIDE AS SAID BEAM, (E) THE SURFACE OF EACH ELECTRODE IS SYMMETRICAL WITH RESPECT TO THE TRANSVERSE CENTER PLANE TO THE BEAM, (F) ALL LONGITUDINAL ELEMENTS OF THE SURFACE OF EACH ELECTRODE ARE STRAIGHT LINE PARALLEL TO THE LONGITUDINAL AXIS OF THE BEAM, AND
Claim 2
Dependent Claim
192 words
IN AN ELECTRON SPACE-DISCHARGE DEVICE OF THE TYPE HAVING A CATHODE ADAPTED TO ISSUE A SHEET ELECTRON BEAM TOWARD A LONGITUDINALLY-SPACED COLLECTOR, A FOCUSING SYSTEM COMPRISING A FIRST PAIR OF ELECTRODES AND A SECOND PAIR OF ELECTRODES, WHEREIN: (A) THE ELECTRODES OF SAID FIRST PAIR ARE ELECTRICALLY CONNECTED TO EACH OTHER AND TO A FIRST CIRCUIT POINT AND THE ELECTRODE OF SAID SECOND PAIR ARE ELECTRICALLY CONNECTED TO EACH OTHER AND TO A SECOND CIRCUIT POINT, MEANS BEING PROVIDED TO MAINTAIN THE POTENTIAL AT SAID FIRST CIRCUIT POINT POSITIVE WITH RESPECT TO SAID SECOND CIRCUIT POINT, (B) THE FIRST ELECTRODE OF EACH PAIR IS POSITIONED OPPOSITE THE SECOND ELECTRODE OF EACH PAIR, THE BEAM PASSING BETWEEN THE FIRST ELECTRODE AND THE SECOND ELECTRODE, (C) THE ELECTRODES OF SAID FIRST PAIR ARE LONGITUDINALLY SPACED FROM THE ELECTRODES OF SAID SECOND PAIR, (D) EACH ELECTRODE IS AT LEAST APPROXIMATELY AS WIDE AS SAID BEAM, (E) THE SURFACE OF EACH ELECTRODE IS SYMMETRICAL WITH RESPECT TO THE TRANSVERSE CENTER PLANE TO THE BEAM, (F) ALL LONGITUDINAL ELEMENTS OF THE SURFACE OF EACH ELECTRODE ARE STRAIGHT LINE PARALLEL TO THE LONGITUDINAL AXIS OF THE BEAM, AND
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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |