US3356889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color television degaussing means having a thermomagnetic core surrounding the face of the cathode ray tube
Assignee: Individual
•
Filing: 1966-04-28
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Granted: 1967-12-05
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Expires: 1986-04-28
Abstract
No abstract record available.
Inventors
- 👤 George G Merkl
- 👤 George B Pearson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:41
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/12; H04N9/16; H04N9/29
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A TELEVISION DEGAUSSING MEANS COMPRISING MAGNETIC MEANS SURROUNDING THE FACE OF A CATHODE RAY TUBE, SAID MAGNETIC MEANS INCLUDING A CORE FORMED OF MATERIAL EXHIBITING THERMOMAGNETIC PROPERTIES, AT LEAST ONE COIL SURROUNDING SAID CORE, AN ALTERNATING CURRENT SOURCE POWERING SAID COIL, AND MEANS FOR PROGRESSIVELY HEATING SAID CORE TO PROPORTIONALLY DIMINISH THE MAGNETIC FLUX OUTPUT WITH INCREASE IN TEMPERATURE.
Claim 2
Dependent Claim
59 words
A TELEVISION DEGAUSSING MEANS COMPRISING MAGNETIC MEANS SURROUNDING THE FACE OF A CATHODE RAY TUBE, SAID MAGNETIC MEANS INCLUDING A CORE FORMED OF MATERIAL EXHIBITING THERMOMAGNETIC PROPERTIES, AT LEAST ONE COIL SURROUNDING SAID CORE, AN ALTERNATING CURRENT SOURCE POWERING SAID COIL, AND MEANS FOR PROGRESSIVELY HEATING SAID CORE TO PROPORTIONALLY DIMINISH THE MAGNETIC FLUX OUTPUT WITH INCREASE IN TEMPERATURE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |