Patent US3343280A successfully refreshed from Google Patents.
US3343280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Language teaching recording-reproducing apparatus and method
Assignee: Individual
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Filing: 1964-12-10
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Granted: 1967-09-26
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Expires: 1984-12-10
Abstract
No abstract record available.
Inventors
- 👤 Tolnai Gabor Kornel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:17
CPC Classifications
G; G09; G09B; G09B5/00; G09B5/04; G11; G11B; G11B5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
A SOUND RECORDING AND REPRODUCING APPARATUS, PARTICULARLY FOR LANGUAGE TEACHING PURPOSES, COMPRISING: AN ENDLESS TAPELIKE SOUND RECORDING CARRIER AND MEANS FOR MOVING SAME AT A CONSTANT SPEED, SAID CARRIER HAVING A SERIES OF LATERALLY SPACED TRACK THEREON; SOME OF SAID TRACKS HAVING PRE-RECORDED MESSAGES THEREON AND OTHERS OF SAID TRACKS BEING BLANK TO RECEIVE INPUT MESSAGES; A PLURALITY OF SOUND REPRODUCING HEADS EACH BEING ASSOCIATED WITH ONE OF SAID PRE-RECORDED TRACKS, AND A PLURALITY OF RECORDING HEADS EACH BEING ASSOCIATED WITH ONE OF SAID BLANK TRACKS, SAID HEADS BEING ARRANGED CROSSWISE OF SAID RECORDING CARRIER, THE REPRODUCING HEADS BEING ARRANGED TO REPRODUCE PRERECORDED MESSAGES FROM THEIR ASSOCIATED TRACKS AND THE RECORDING HEADS BEING ARRANGED TO RECORD INPUT MESSAGES ON THEIR ASSOCIATED TRACKS; A PLURALITY OF PLAYBACK MEANS SELECTIVELY COUPLED TO SAID REPRODUCING HEADS FOR SELECTIVELY REPRODUCING ANY ONE OF SAID PRE-RECORDED MESSAGES AT SEVERAL SOUND REPRODUCING POINTS; AND MICROPHONE MEANS AT SAID SOUND REPRODUCING POINTS COUPLED TO SAID RECORDING HEADS SO THAT INPUT MESSAGES CAN BE RECORDED ON THE TRACKS ASSOCIATED WITH THE RESPECTIVE RECORDING HEADS.
Claim 2
Dependent Claim
176 words
A SOUND RECORDING AND REPRODUCING APPARATUS, PARTICULARLY FOR LANGUAGE TEACHING PURPOSES, COMPRISING: AN ENDLESS TAPELIKE SOUND RECORDING CARRIER AND MEANS FOR MOVING SAME AT A CONSTANT SPEED, SAID CARRIER HAVING A SERIES OF LATERALLY SPACED TRACK THEREON; SOME OF SAID TRACKS HAVING PRE-RECORDED MESSAGES THEREON AND OTHERS OF SAID TRACKS BEING BLANK TO RECEIVE INPUT MESSAGES; A PLURALITY OF SOUND REPRODUCING HEADS EACH BEING ASSOCIATED WITH ONE OF SAID PRE-RECORDED TRACKS, AND A PLURALITY OF RECORDING HEADS EACH BEING ASSOCIATED WITH ONE OF SAID BLANK TRACKS, SAID HEADS BEING ARRANGED CROSSWISE OF SAID RECORDING CARRIER, THE REPRODUCING HEADS BEING ARRANGED TO REPRODUCE PRERECORDED MESSAGES FROM THEIR ASSOCIATED TRACKS AND THE RECORDING HEADS BEING ARRANGED TO RECORD INPUT MESSAGES ON THEIR ASSOCIATED TRACKS; A PLURALITY OF PLAYBACK MEANS SELECTIVELY COUPLED TO SAID REPRODUCING HEADS FOR SELECTIVELY REPRODUCING ANY ONE OF SAID PRE-RECORDED MESSAGES AT SEVERAL SOUND REPRODUCING POINTS; AND MICROPHONE MEANS AT SAID SOUND REPRODUCING POINTS COUPLED TO SAID RECORDING HEADS SO THAT INPUT MESSAGES CAN BE RECORDED ON THE TRACKS ASSOCIATED WITH THE RESPECTIVE RECORDING HEADS.
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) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |