US3136910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color television tube with a magnetic focus-mask
Assignee: Zenith Electronics LLC
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Filing: 1961-07-24
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Granted: 1964-06-09
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Expires: 1981-07-24
Abstract
No abstract record available.
Inventors
- 👤 Sam H Kaplan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:29
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/80; H01J29/81
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
AN IMAGE-TRANSLATING DEVICE COMPRISING: AN ENVELOPE; A SCREEN POSITIONED WITHIN SAID ENVELOPE AND CAPABLE OF EXCITATION UPON BOMBARDMENT BY ELECTRONS; MEANS FOR PRODUCING AN ELECTRON STREAM MODULATED TO REPRESENT AN IMAGE AND FOR ACCELERATING SAID STREAM ALONG A PREDETERMINED PATH TO IMPINGE UPON SAID SCREEN; AN ELECTRON BARRIER DISPOSED ACROSS SAID PATH HAVING A PLURALITY OF AREAS SPACED FROM ONE ANOTHER AND INDIVIDUALLY PROVIDING ACCESS FOR AT LEAST A PORTION OF SAID STREAM TO SAID SCREEN; AND MEANS INCLUDED IN SAID BARRIER FOR ESTABLISHING A MAGNETIC LENS FIELD AT EACH OF SAID AREAS TO FOCUS THE STREAM PORTION TRAVERSING EACH SUCH AREA TO A CROSS-SECTION, IN THE PLANE OF SAID SCREEN, WHICH IS SMALL COMPARED TO THE CROSS-SECTION OF THE ASSOCIATED AREA OF SAID BARRIER.
Claim 2
Dependent Claim
125 words
AN IMAGE-TRANSLATING DEVICE COMPRISING: AN ENVELOPE; A SCREEN POSITIONED WITHIN SAID ENVELOPE AND CAPABLE OF EXCITATION UPON BOMBARDMENT BY ELECTRONS; MEANS FOR PRODUCING AN ELECTRON STREAM MODULATED TO REPRESENT AN IMAGE AND FOR ACCELERATING SAID STREAM ALONG A PREDETERMINED PATH TO IMPINGE UPON SAID SCREEN; AN ELECTRON BARRIER DISPOSED ACROSS SAID PATH HAVING A PLURALITY OF AREAS SPACED FROM ONE ANOTHER AND INDIVIDUALLY PROVIDING ACCESS FOR AT LEAST A PORTION OF SAID STREAM TO SAID SCREEN; AND MEANS INCLUDED IN SAID BARRIER FOR ESTABLISHING A MAGNETIC LENS FIELD AT EACH OF SAID AREAS TO FOCUS THE STREAM PORTION TRAVERSING EACH SUCH AREA TO A CROSS-SECTION, IN THE PLANE OF SAID SCREEN, WHICH IS SMALL COMPARED TO THE CROSS-SECTION OF THE ASSOCIATED AREA OF SAID BARRIER.
References Cited (Backward Citations)
US2971117A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |