US3333143A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Instant-on automatic degaussing circuit for color television receivers
Assignee: Admiral Corp
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Filing: 1966-01-17
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Granted: 1967-07-25
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Expires: 1986-01-17
Abstract
No abstract record available.
Inventors
- 👤 Peter H Van Anrooy
- 👤 Leroy W Nero
- 👤 James G S Chua
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:08
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/12; H04N9/16; H04N9/29
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
IN COMBINATION WITH A COLOR TELEVISION RECEIVER HAVING A PICTURE TUBE SUSCEPTIBLE TO EXTERNAL MAGNETIC FIELDS AND INCLUDING A PLURALITY OF VACUUM TUBES REQUIRING DC OPERATING CURRENT AND AC HEATER CURRENT; DEGAUSSING MEANS ADJACENT SAID PICTURE TUBE FOR PERIODICALLY DEMAGNETIZING SAID PICTURE TUBE; POWER SUPPLY MEANS; FILTER MEANS; MEANS ALTERING SAID POWER SUPPLY MEANS FOR SUPPLYING LESS THAN NORMAL HEATER POWER TO SAID VACUUM TUBES DURING OFF PERIODS OF SAID TELEVISION RECEIVER; MEANS DISCONNECTING SAID FILTER MEANS DURING SAID OFF PERIODS; MEANS DIABLING SAID DEGAUSSING MEANS A PREDETERMINED TIME AFTER TURN ON OF SAID TELEVISION RECEIVER WHEREBY
Claim 2
Dependent Claim
97 words
IN COMBINATION WITH A COLOR TELEVISION RECEIVER HAVING A PICTURE TUBE SUSCEPTIBLE TO EXTERNAL MAGNETIC FIELDS AND INCLUDING A PLURALITY OF VACUUM TUBES REQUIRING DC OPERATING CURRENT AND AC HEATER CURRENT; DEGAUSSING MEANS ADJACENT SAID PICTURE TUBE FOR PERIODICALLY DEMAGNETIZING SAID PICTURE TUBE; POWER SUPPLY MEANS; FILTER MEANS; MEANS ALTERING SAID POWER SUPPLY MEANS FOR SUPPLYING LESS THAN NORMAL HEATER POWER TO SAID VACUUM TUBES DURING OFF PERIODS OF SAID TELEVISION RECEIVER; MEANS DISCONNECTING SAID FILTER MEANS DURING SAID OFF PERIODS; MEANS DIABLING SAID DEGAUSSING MEANS A PREDETERMINED TIME AFTER TURN ON OF SAID TELEVISION RECEIVER WHEREBY
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) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |