US3075131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deflection yoke core for cathode ray tubes
Assignee: Indiana General Corp
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Filing: 1957-05-27
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Granted: 1963-01-22
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Expires: 1977-05-27
Abstract
No abstract record available.
Inventors
- 👤 Christopher L Snyder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:42
CPC Classifications
H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/0302; H01F1/0311; H01F1/0313; H01F1/0315; H01F1/12; H01F1/14; H01J; H01J29/00; H01J29/46; H01J29/70; H01J29/72; H01J29/76; H01J29/762; H01J2229/00; H01J2229/70; H01J2229/703; H01J2229/7031
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
IN A FOUR PART FERROMAGNETIC TOROIDAL DEFLECTING YOKE CORE FOR CATHODE RAY TUBES, A FIRST PAIR OF PARTS EACH COMPRISING TWO MATING SURFACES EXTENDING ACROSS THE RING PORTION OF THE COMPLETE TOROID, SAID TWO MATING SURFACES BEING IN THE SAME PLANE AND BEING SEPARATED BY A PORTION OF THE INNER CIRCUMFERENCE OF THE TOROID, A SECOND PAIR OF PARTS, EACH HAVING TWO PARALLEL MATING SURFACES, ONE AT EACH END OF SAID PART, EACH PART OF A PAIR BEING OPPOSITE ITS SIMILAR PART WHEREBY THE AIR GAP AT THE MATING SURFACES OF SAID PARTS MAY BE REDUCED TO A MINIMUM AND THE INSIDE DIAMETER AT THE CENTERS OF SAID SECOND PAIR OF PARTS MAY BE ADJUSTED WITHOUT DISTRUBING SAID AIR GAP.
Claim 2
Dependent Claim
120 words
IN A FOUR PART FERROMAGNETIC TOROIDAL DEFLECTING YOKE CORE FOR CATHODE RAY TUBES, A FIRST PAIR OF PARTS EACH COMPRISING TWO MATING SURFACES EXTENDING ACROSS THE RING PORTION OF THE COMPLETE TOROID, SAID TWO MATING SURFACES BEING IN THE SAME PLANE AND BEING SEPARATED BY A PORTION OF THE INNER CIRCUMFERENCE OF THE TOROID, A SECOND PAIR OF PARTS, EACH HAVING TWO PARALLEL MATING SURFACES, ONE AT EACH END OF SAID PART, EACH PART OF A PAIR BEING OPPOSITE ITS SIMILAR PART WHEREBY THE AIR GAP AT THE MATING SURFACES OF SAID PARTS MAY BE REDUCED TO A MINIMUM AND THE INSIDE DIAMETER AT THE CENTERS OF SAID SECOND PAIR OF PARTS MAY BE ADJUSTED WITHOUT DISTRUBING SAID AIR GAP.
References Cited (Backward Citations)
US2793311A
Cited
US2817782A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |