US3202857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mesh electrode support structure
Assignee: RCA Corp
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Filing: 1960-08-30
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Granted: 1965-08-24
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Expires: 1980-08-30
Abstract
No abstract record available.
Inventors
- 👤 Antoniades Basil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:23
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A CAMERA TUBE COMPRISING AN ENVELOPE HAVING AN AXIS, AN ELECTRON GUN IN SAID ENVELOPE AND SUBSTANTAILLY ON SAID AXIS, FOR PRODUCING AN ELECTRON BEAM, A PHOTOCONDUCTIVE TARGET ELECTRODE IN SAID ENVELOPE SAID SUBSTANTIALLY NORMAL TO SAID AXIS AND IN THE PATH OF SAID ELECTRON BEAM, A MESH SCREEN ELECTRODE EXTENDING PARALLEL TO SAID PHOTOCONDUCTIVE TARGET ELECTRODE AND CLOSING AN END OF SAID ELECTRON GUN, AND MEANS FOR SUPPORTING SAID MESH SCREEN ELECTRODE ON SAID END OF SAID ELECTRON GUN, SAID MEANS INCLUDING A PAIR OF ELECTRODE SUPPORT MEMBERS HAVING AN OUTER PERIPHERY SUBSTANTIALLY CONGRUENT TO THE OUTER PERIPHERY OF SAID END OF SAID ELECTRON GUN, EACH OF SAID ELECTRODE SUPPORT MEMBERS HAVING A DIFFERENT OPENING THERETHROUGH, EACH OF SAID OPENINGS INCLUDING A PLURLAITY OF RIGHT ANGLE CORNERS, SAID MESH SCREEN ELECTRODE BEING SECURED BETWEEN AND DIRECTLY TO EACH OF SAID SUPPORT MEMBERS ADJACENT TO SAID CORNERS.
Claim 2
Dependent Claim
147 words
A CAMERA TUBE COMPRISING AN ENVELOPE HAVING AN AXIS, AN ELECTRON GUN IN SAID ENVELOPE AND SUBSTANTAILLY ON SAID AXIS, FOR PRODUCING AN ELECTRON BEAM, A PHOTOCONDUCTIVE TARGET ELECTRODE IN SAID ENVELOPE SAID SUBSTANTIALLY NORMAL TO SAID AXIS AND IN THE PATH OF SAID ELECTRON BEAM, A MESH SCREEN ELECTRODE EXTENDING PARALLEL TO SAID PHOTOCONDUCTIVE TARGET ELECTRODE AND CLOSING AN END OF SAID ELECTRON GUN, AND MEANS FOR SUPPORTING SAID MESH SCREEN ELECTRODE ON SAID END OF SAID ELECTRON GUN, SAID MEANS INCLUDING A PAIR OF ELECTRODE SUPPORT MEMBERS HAVING AN OUTER PERIPHERY SUBSTANTIALLY CONGRUENT TO THE OUTER PERIPHERY OF SAID END OF SAID ELECTRON GUN, EACH OF SAID ELECTRODE SUPPORT MEMBERS HAVING A DIFFERENT OPENING THERETHROUGH, EACH OF SAID OPENINGS INCLUDING A PLURLAITY OF RIGHT ANGLE CORNERS, SAID MESH SCREEN ELECTRODE BEING SECURED BETWEEN AND DIRECTLY TO EACH OF SAID SUPPORT MEMBERS ADJACENT TO SAID CORNERS.
References Cited (Backward Citations)
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Cited
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US2897389A
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US2909687A
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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) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |