US3098942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic centering device for cathode ray tubes
Assignee: Zenith Electronics LLC
•
Filing: 1955-02-24
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Granted: 1963-07-23
•
Expires: 1975-02-24
Abstract
No abstract record available.
Inventors
- 👤 Sol L Reiches
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:40
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/70; H01J29/701; H01J29/702; H01J29/703
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
112 words
A BEAM CENTERING DEVICE, FOR USE IN CONJUNCTION WITH A CATHODE-RAY TUBE HAVING A NECK A PORTION OF WHICH IS SURROUNDED BY AN ELECTROMAGNETIC DEFLECTION YOKE OF A PHYSICAL SHAPE DEFINING A MAGNETIC DEFLECTION CENTER AND A SPACE OF PREDETERMINED SIZE IN ITS INTERIOR EXTERNALLY OF SAID NECK PORTION, COMPRISING: MEANS, INCLUDING A STATIC FIELD PRODUCING ELEMENT RECEIVABLE IN SAID SPACE SUBSTANTIALLY AT SAID DEFLECTION CENTER, FOR CREATING A STATIC MAGNETIC FIELD ORIENTED GENERALLY TRANSVERSE TO AND ROTATABLE ABOUT THE AXIS OF SAID NECK, SAID ELEMENT BEING OF A MATERIAL HAVING SUBSTANTIALLY UNITY PERMEABILITY AND MAINTAINING A PRESELECTED STRENGTH OF SAID STATIC FIELD IN THE PRESENCE OF AN OPERATING DEFLECTION YOKE FIELD.
References Cited (Backward Citations)
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Cited
US2719249A
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US2730642A
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US2740064A
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US2717323A
Cited
US2795717A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-22 | 1967-01-21 | 1967-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-22 | 1971-01-21 | 1971-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-22 | 1975-01-21 | 1975-07-23 | $7700.00 | Window Closed / Lapsed |