US3363126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image orthicon cathode ray tube with copper screen target having a chromium supported magnesium oxide film
Assignee: United States Department of the Army
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Filing: 1966-06-03
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Granted: 1968-01-09
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Expires: 1986-06-03
Abstract
No abstract record available.
Inventors
- 👤 Donald L Schaefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:07
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J29/41; H01J29/413; H01J29/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
IN A CATHODE-RAY TUBE OF THE IMAGE-ORTHICON TYPE, A TARGET STRUCTURE COMPRISING IN COMBINATION, AN ELECTRICALLY-CONDUCTIVE SCREEN PROVIDING A SUPPORTING ELEMENT FOR SAID STRUCTURE, A FIXED CONDUCTIVE MOUNTING RING BY WHICH SAID SCREEN IS SUPPORTED, MEANS PROVIDING A MAGNESIUM-OXIDE FILM IN SPACED RELATION TO SAID SCREEN IN SAID TARGET STRUCTURE, AND A LAYER OF CHROMIUM CARRIED BY SAID SCREEN AND THE CONDUCTORS THEREOF AND OF A THICKNESS TO CONTACT SUCH MAGNESIUM OXIDE FILM THEREBY TO MAINTAIN THE SCREEN IN SPACED RELATION THERETO AND TAUT TO PREVENT FILM BREAKAGE.
Claim 2
Dependent Claim
88 words
IN A CATHODE-RAY TUBE OF THE IMAGE-ORTHICON TYPE, A TARGET STRUCTURE COMPRISING IN COMBINATION, AN ELECTRICALLY-CONDUCTIVE SCREEN PROVIDING A SUPPORTING ELEMENT FOR SAID STRUCTURE, A FIXED CONDUCTIVE MOUNTING RING BY WHICH SAID SCREEN IS SUPPORTED, MEANS PROVIDING A MAGNESIUM-OXIDE FILM IN SPACED RELATION TO SAID SCREEN IN SAID TARGET STRUCTURE, AND A LAYER OF CHROMIUM CARRIED BY SAID SCREEN AND THE CONDUCTORS THEREOF AND OF A THICKNESS TO CONTACT SUCH MAGNESIUM OXIDE FILM THEREBY TO MAINTAIN THE SCREEN IN SPACED RELATION THERETO AND TAUT TO PREVENT FILM BREAKAGE.
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) | 1971-01-08 | 1971-07-10 | 1972-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-08 | 1975-07-10 | 1976-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-08 | 1979-07-10 | 1980-01-09 | $7700.00 | Window Closed / Lapsed |