US3090137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Teaching aid apparatus
Assignee: INTERNATIONAL TEACHING MACHINE CORP
•
Filing: 1961-12-07
•
Granted: 1963-05-21
•
Expires: 1981-12-07
Abstract
No abstract record available.
Inventors
- 👤 Asrican Manfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:43
CPC Classifications
G; G09; G09B; G09B5/00; G09B5/06; G09B5/062
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A TEACHING AID COMPRISING, IN COMBINATION, A VIEWING SURFACE UPON WHICH WRITTEN MATTER MAY BE PRESENTED, MEANS FOR PRESENTING SAID WRITTEN MATTER ON SAID SURFACE BLIND MEANS INITIALLY COVERING SAID WRITTEN MATTER ADAPTED TO PROGRESSIVELY EXPOSE TO VIEW SUCCESSIVE LINES THEREOF, MEANS FOR RECORDING MATTER READ ALOUD BY THE VIEWER FROM SAID WRITTEN MATTER EXPOSED BY SAID BLIND MEANS, MEANS FOR RETURNING SAID BLIND MEANS TO ITS INITIAL POSITION, FIRST CONTROL MEANS FOR PERMITTING SAID BLIND MEANS TO REPEAT ITS CYCLE ONE OR MORE TIMES, MEANS FOR AUDIBLY REPRODUCING SAID RECORDED MATTER, SECOND CONTROL MEANS FOR ACTUATING SAID SOUND REPRODUCING MEANS AT THE SAME TIME AS SAID BLIND MEANS BEGINS A REPEAT CYCLE, WHEREBY THE OPERATOR HEARS THE RECORDED SOUND COINCIDENTALLY WITH THE EXPOSURE OF THE WRITTEN MATTER CORRESPONDING THERETO.
Claim 2
Dependent Claim
130 words
A TEACHING AID COMPRISING, IN COMBINATION, A VIEWING SURFACE UPON WHICH WRITTEN MATTER MAY BE PRESENTED, MEANS FOR PRESENTING SAID WRITTEN MATTER ON SAID SURFACE BLIND MEANS INITIALLY COVERING SAID WRITTEN MATTER ADAPTED TO PROGRESSIVELY EXPOSE TO VIEW SUCCESSIVE LINES THEREOF, MEANS FOR RECORDING MATTER READ ALOUD BY THE VIEWER FROM SAID WRITTEN MATTER EXPOSED BY SAID BLIND MEANS, MEANS FOR RETURNING SAID BLIND MEANS TO ITS INITIAL POSITION, FIRST CONTROL MEANS FOR PERMITTING SAID BLIND MEANS TO REPEAT ITS CYCLE ONE OR MORE TIMES, MEANS FOR AUDIBLY REPRODUCING SAID RECORDED MATTER, SECOND CONTROL MEANS FOR ACTUATING SAID SOUND REPRODUCING MEANS AT THE SAME TIME AS SAID BLIND MEANS BEGINS A REPEAT CYCLE, WHEREBY THE OPERATOR HEARS THE RECORDED SOUND COINCIDENTALLY WITH THE EXPOSURE OF THE WRITTEN MATTER CORRESPONDING THERETO.
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) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |