US3191104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deflection system for television receivers
Assignee: US Philips Corp
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Filing: 1961-11-21
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Granted: 1965-06-22
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Expires: 1981-11-21
Abstract
No abstract record available.
Inventors
- 👤 Mak Gerrit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:53
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/70; H01J29/701; H01J29/82; H01J29/823; H01J29/826
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
IN A DEFLECTION COIL SYSTEM FOR TELEVISION DISPLAY TUBES, A SCREENING HOOD OF INSULATING MOLDING MATERIAL, SAID SCREENING HOOD COMPRISING A GENERALLY TRUNCATED CONICAL PORTION FOR HOUSING DEFLECTION COILS AND AN ANNULAR MARGINAL PORTION, SAID ANNULAR MARGINAL PORTION HAVING A DISPERSION OF PERMANENT MAGNETIZABLE POWDER OF HIGH COERCIVE FORCE WHEREBY DISCRETE AREAS OF SAID ANNULAR PORTION MAY BE PERMANENTLY MAGNETIZED FOR IMAGE CORRECTION.
Claim 2
Dependent Claim
63 words
IN A DEFLECTION COIL SYSTEM FOR TELEVISION DISPLAY TUBES, A SCREENING HOOD OF INSULATING MOLDING MATERIAL, SAID SCREENING HOOD COMPRISING A GENERALLY TRUNCATED CONICAL PORTION FOR HOUSING DEFLECTION COILS AND AN ANNULAR MARGINAL PORTION, SAID ANNULAR MARGINAL PORTION HAVING A DISPERSION OF PERMANENT MAGNETIZABLE POWDER OF HIGH COERCIVE FORCE WHEREBY DISCRETE AREAS OF SAID ANNULAR PORTION MAY BE PERMANENTLY MAGNETIZED FOR IMAGE CORRECTION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |