US3142909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic sound repeater mechanism
Assignee: LINGUATRONICS Inc
•
Filing: 1961-10-31
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Granted: 1964-08-04
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Expires: 1981-10-31
Abstract
No abstract record available.
Inventors
- 👤 Carlos A Irazoqui
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:34
CPC Classifications
G; G11; G11B; G11B27/00; G11B27/005; G11B27/007; G09; G09B; G09B5/00; G09B5/06; G09B5/067
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A METHOD OF AUDIO-VISUAL INSTRUCTION COMPRISING THE STEPS OF (1) PROJECTING ON A SCREEN THE PICTURE ON A SOUND MOTION PICTURE FILM REPRESENTATION OF THE MANNER OF FORMATION OF A SOUND, AND SYCHRONIZED THEREWITH, PLAYING BACK THE RECORDED SOUND ON THE FILM, (2) RERECORDING THE PLAYBACK SOUND DURING SAID PLAYING BACK, (3) STOPPING SAID FILM, (4) RECORDING A STUDENT''S REPETITION OF THE SOUND, AND (5) SIMULTANEOUSLY PLAYING BACK AND COMPARING THE STUDENT''S RECORDING AND THE SAID RERECORDING OF THE SOUND WHILE HOLDING SAID FILM STOPPED.
Claim 2
Independent Claim
85 words
A METHOD OF AUDIO-VISUAL INSTRUCTION COMPRISING THE STEPS OF (1) PROJECTING ON A SCREEN THE PICTURE ON A SOUND MOTION PICTURE FILM REPRESENTATION OF THE MANNER OF FORMATION OF A SOUND, AND SYCHRONIZED THEREWITH, PLAYING BACK THE RECORDED SOUND ON THE FILM, (2) RERECORDING THE PLAYBACK SOUND DURING SAID PLAYING BACK, (3) STOPPING SAID FILM, (4) RECORDING A STUDENT''S REPETITION OF THE SOUND, AND (5) SIMULTANEOUSLY PLAYING BACK AND COMPARING THE STUDENT''S RECORDING AND THE SAID RERECORDING OF THE SOUND WHILE HOLDING SAID FILM STOPPED.
References Cited (Backward Citations)
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |