US3076121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode ray tube system
Assignee: GTE Sylvania Inc
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Filing: 1959-03-20
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Granted: 1963-01-29
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Expires: 1979-03-20
Abstract
No abstract record available.
Inventors
- 👤 Elmer O Stone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:09
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/66; H04N5/68
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
IN A TELEVISION RECEIVER EMPLOYING A VIDEO AND SOUND MODULATED SIGNAL AND A SOUND TRAP COUPLED TO A SOUND REPRODUCING SECTION, A CATHODE RAY TUBE HAVING AN ELECTRON GUN STRUCTURE DISPOSED WITHIN THE ENVELOPE THEREOF COMPRISING AN AMPLIFIER INCLUDING A CATHODE, CONTROL GRID AND AN ANODE, SAID SIGNAL BEING COUPLED TO THE CONTROL GRID, AND AN ELECTRON BEAM PRODUCING ASSEMBLY INCLUDING AN ELECTRON SOURCE, A CONTROL ELECTRODE AND A CONSTANT POTENTIAL SCREEN GRID, SAID ANODE BEING COUPLED TO THE SOUND TRAP TO PROVIDE SAID SOUND MODULATED SIGNAL FOR THE SOUND REPRODUCING SECTION AND TO SAID ASSEMBLY TO PROVIDE A VIDEO MODULATED BIAS BETWEEN SAID SOURCE AND THE CONTROL ELECTRODE.
Claim 2
Dependent Claim
109 words
IN A TELEVISION RECEIVER EMPLOYING A VIDEO AND SOUND MODULATED SIGNAL AND A SOUND TRAP COUPLED TO A SOUND REPRODUCING SECTION, A CATHODE RAY TUBE HAVING AN ELECTRON GUN STRUCTURE DISPOSED WITHIN THE ENVELOPE THEREOF COMPRISING AN AMPLIFIER INCLUDING A CATHODE, CONTROL GRID AND AN ANODE, SAID SIGNAL BEING COUPLED TO THE CONTROL GRID, AND AN ELECTRON BEAM PRODUCING ASSEMBLY INCLUDING AN ELECTRON SOURCE, A CONTROL ELECTRODE AND A CONSTANT POTENTIAL SCREEN GRID, SAID ANODE BEING COUPLED TO THE SOUND TRAP TO PROVIDE SAID SOUND MODULATED SIGNAL FOR THE SOUND REPRODUCING SECTION AND TO SAID ASSEMBLY TO PROVIDE A VIDEO MODULATED BIAS BETWEEN SAID SOURCE AND THE CONTROL ELECTRODE.
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) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |