Patent US3293474A successfully refreshed from Google Patents.
US3293474A
Expired / Lapsed
US
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Phosphor dielectric storage target for cathode ray tube
Assignee: Tektronix Inc
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Filing: 1963-08-01
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Granted: 1966-12-20
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Expires: 1983-08-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles B Gibson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:49
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J29/44; H01J29/41; H01J31/00; H01J31/08; H01J31/10; H01J31/12; H01J31/122
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A STORAGE TARGET FOR STORING AN ELECTRON IMAGE, COMPRISING: A NONCONDUCTING SUPPORT MEMBER OF ELECTRICAL INSULATIVE MATERIAL; A COATING OF CONDUCTIVE MATERIAL IN CONTACT WITH ONE SIDE OF SAID SUPPORT MEMBER HAVING A PLURALITY OF SEPARATED APERTURES WHICH EXTEND THROUGH SAOD COATING TO SAID SUPPORT MEMBER; AND A STORAGE DIELECTRIC LAYER OF SECONDARY EMISSIVE PHOSPHOR MATERIAL IN CONTACT WITH SAID ONE SIDE OF SAID SUPPORT MEMBER IN THE FORM OF A PLURALITY OF SPACED DIELECTRIC STORAGE AREAS CONTAINED IN THE APERTURES OF THE CONDUCTIVE COATING, SAID DIELECTRIC AREAS BEING SEPARATED FROM EACH OTHER BY THE ELEMENTS OF SAID CONDUCTIVE COATING TO ENABLE THE BISTABLE STORAGE OF ELECTRON IMAGES FORMED THEREON.
Claim 2
Dependent Claim
110 words
A STORAGE TARGET FOR STORING AN ELECTRON IMAGE, COMPRISING: A NONCONDUCTING SUPPORT MEMBER OF ELECTRICAL INSULATIVE MATERIAL; A COATING OF CONDUCTIVE MATERIAL IN CONTACT WITH ONE SIDE OF SAID SUPPORT MEMBER HAVING A PLURALITY OF SEPARATED APERTURES WHICH EXTEND THROUGH SAOD COATING TO SAID SUPPORT MEMBER; AND A STORAGE DIELECTRIC LAYER OF SECONDARY EMISSIVE PHOSPHOR MATERIAL IN CONTACT WITH SAID ONE SIDE OF SAID SUPPORT MEMBER IN THE FORM OF A PLURALITY OF SPACED DIELECTRIC STORAGE AREAS CONTAINED IN THE APERTURES OF THE CONDUCTIVE COATING, SAID DIELECTRIC AREAS BEING SEPARATED FROM EACH OTHER BY THE ELEMENTS OF SAID CONDUCTIVE COATING TO ENABLE THE BISTABLE STORAGE OF ELECTRON IMAGES FORMED THEREON.
References Cited (Backward Citations)
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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) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |