US3207936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron beam display device
Assignee: Tektronix Inc
•
Filing: 1961-08-21
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Granted: 1965-09-21
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Expires: 1981-08-21
Abstract
No abstract record available.
Inventors
- 👤 William H Wilbanks
- 👤 Robert H Johnson
- 👤 Chan H Wang
- 👤 Frank C Erzen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:39
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/10; H01J31/12; H01J31/121; C; C03; C03B; C03B23/00; C03B23/20; C03B23/207; C03B23/217; C03C; C03C27/00; C03C3/00; C03C3/04; C03C3/062; C03C3/07; C03C3/072; C03C3/074; H01B; H01B1/00; H01B1/06; H01B1/08; H01B3/00; H01B3/02; H01B3/08; H01B3/087; H01J29/00; H01J29/02; H01J29/10; H01J29/18; H01J29/185; H01J29/24; H01J29/28; H01J29/34; H01J29/86; H01J29/88; H01J29/92; H01J9/00; H01J9/24; H01J9/26; H01J9/263
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
AN ELECTRON BEAM DISPLAY DEVICE, COMPRISING: AN ENVELOPE HAVING A HOLLOW BODY PORTION MADE OF CERMERIC MATERIAL, A FACE PLATE PORTION MADE OF TRANSPARENT GLASS IN THE FORM OF A SUBSTANTIALLY FLAT PLATE SHAPED TO CONFORM TO ONE END OF SAID BODY PORTION, AND A SEAL PORTIN ATTACHING SAID FACE PLATE PORTION TO SAID ONE END OF SAID BODY PORTION WITH SAID SEAL PORTION BEING MADE OF FUSED GLASS MATERIAL DIFFERENT FROM SAID TRANSPARENT GLASS BUT HAVING A THERMAL COEFFICIENT OF EXPANSION SIMILAR TO THAT OF SAID CERAMIC AND SAID TRANSPARENT GLASS; A FLUORESCENT SCREEN INCLUDING A LAYER OF PHOSPHOR MATERIAL SUPPORTED ON THE FLAT INNER SURFACE OF SAID GLASS FACE PLATE PORTION INSIDE SAID ENVELOPE; A SOURCE OF ELECTRONS POSITIONED WITHIN SAID ENVELOPE AT ONE END THEREOF REMOTE FROM SAID FACE PLATE; MEANS TO ACCELERATE SAID ELECTRONS AND TO FOCUS SAID ELECTRONS INTO AN ELECTRON BEAM; AND MEANS TO DEFLECT SAID ELECTRON BEAM IN RESPONSE TO AN ELECTRICAL SIGNAL BEFORE SAID BEAM STRIKES SAID FLUORESCENT SCREEN ON SAID FACE PLATE.
Claim 2
Dependent Claim
171 words
AN ELECTRON BEAM DISPLAY DEVICE, COMPRISING: AN ENVELOPE HAVING A HOLLOW BODY PORTION MADE OF CERMERIC MATERIAL, A FACE PLATE PORTION MADE OF TRANSPARENT GLASS IN THE FORM OF A SUBSTANTIALLY FLAT PLATE SHAPED TO CONFORM TO ONE END OF SAID BODY PORTION, AND A SEAL PORTIN ATTACHING SAID FACE PLATE PORTION TO SAID ONE END OF SAID BODY PORTION WITH SAID SEAL PORTION BEING MADE OF FUSED GLASS MATERIAL DIFFERENT FROM SAID TRANSPARENT GLASS BUT HAVING A THERMAL COEFFICIENT OF EXPANSION SIMILAR TO THAT OF SAID CERAMIC AND SAID TRANSPARENT GLASS; A FLUORESCENT SCREEN INCLUDING A LAYER OF PHOSPHOR MATERIAL SUPPORTED ON THE FLAT INNER SURFACE OF SAID GLASS FACE PLATE PORTION INSIDE SAID ENVELOPE; A SOURCE OF ELECTRONS POSITIONED WITHIN SAID ENVELOPE AT ONE END THEREOF REMOTE FROM SAID FACE PLATE; MEANS TO ACCELERATE SAID ELECTRONS AND TO FOCUS SAID ELECTRONS INTO AN ELECTRON BEAM; AND MEANS TO DEFLECT SAID ELECTRON BEAM IN RESPONSE TO AN ELECTRICAL SIGNAL BEFORE SAID BEAM STRIKES SAID FLUORESCENT SCREEN ON SAID FACE PLATE.
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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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |