US3137948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Teaching machines
Assignee: TEACHING MACHINES Inc
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Filing: 1960-08-17
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Granted: 1964-06-23
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Expires: 1980-08-17
Abstract
No abstract record available.
Inventors
- 👤 Jr Lewis Benjamin Wyckoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:26
CPC Classifications
G; G09; G09B; G09B7/00; G09B7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
221 words
A TEACHING DEVICE EMPLOYING A FILM STRIP HAVING RECORDED THEREON A PLURALITY OF FRAMES OF INFORMATION, EACH OF SAID FRAMES INCLUDING A QUESTION PORTION AND AN ANSWER PORTION OF CODED DISCRETE LIGHT TRANSMITTING AREAS, A GROUP OF FRAMES EQUAL IN NUMBER TO THE NUMBER OF CHARACTERS REQUIRED FOR THE CORRECT WORD ANSWER TO A QUESTION HAVING THE SAME QUESTION RECORDED THEREON, EACH OF SAID FRAMES OF SAID GROUP HAVING CODED AREAS RELATING TO A SEPARATE CHARACTER OF THE WORD RECORDED THEREON AND THE AREAS BEING ARRANGED ON SAID FRAMES SO THAT THE CHARACTERS ARE PRESENTED IN THE CORRECT ORDER TO DEFINE THE CORRECT WORD ANSWER, SAID TEACHING DEVICE COMPRISING A VIEWING SCREEN, A LIGHT DETECTING MEANS, MEANS FOR PROJECTING ONE FRAME OF THE FILM AT A TIME SO THAT SAID QUESTION PORTION OF THE FRAME FALLS ON SAID VIEWING SCREEN AND SAID ANSWER PORTION FALLS ON SAID LIGHT DETECTING MEANS, SAID LIGHT DETECTING MEANS PRODUCING A PATTERN OF CODED SIGNALS INDICATIVE OF THE CODED LIGHT AREAS ON SAID FILM, PLURAL MEANS OPERABLE TOGETHER BY THE INDIVIDUAL FOR PRODUCING CODED PATTERNS INDICATIVE OF A LETTER OF THE WORD ANSWER SELECTED BY THE INDIVIDUAL, MEANS FOR PRODUCING A CONTROL SIGNAL IN RESPONSE ONLY TO EXACT CORRESPONDENCE BETWEEN SAID CODED PATTERNS, MEANS FOR SEQUENCING SAID MEANS FOR PROJECTING SO AS TO SEQUENTIALLY AND SUCCESSIVE-
Claim 2
Dependent Claim
221 words
A TEACHING DEVICE EMPLOYING A FILM STRIP HAVING RECORDED THEREON A PLURALITY OF FRAMES OF INFORMATION, EACH OF SAID FRAMES INCLUDING A QUESTION PORTION AND AN ANSWER PORTION OF CODED DISCRETE LIGHT TRANSMITTING AREAS, A GROUP OF FRAMES EQUAL IN NUMBER TO THE NUMBER OF CHARACTERS REQUIRED FOR THE CORRECT WORD ANSWER TO A QUESTION HAVING THE SAME QUESTION RECORDED THEREON, EACH OF SAID FRAMES OF SAID GROUP HAVING CODED AREAS RELATING TO A SEPARATE CHARACTER OF THE WORD RECORDED THEREON AND THE AREAS BEING ARRANGED ON SAID FRAMES SO THAT THE CHARACTERS ARE PRESENTED IN THE CORRECT ORDER TO DEFINE THE CORRECT WORD ANSWER, SAID TEACHING DEVICE COMPRISING A VIEWING SCREEN, A LIGHT DETECTING MEANS, MEANS FOR PROJECTING ONE FRAME OF THE FILM AT A TIME SO THAT SAID QUESTION PORTION OF THE FRAME FALLS ON SAID VIEWING SCREEN AND SAID ANSWER PORTION FALLS ON SAID LIGHT DETECTING MEANS, SAID LIGHT DETECTING MEANS PRODUCING A PATTERN OF CODED SIGNALS INDICATIVE OF THE CODED LIGHT AREAS ON SAID FILM, PLURAL MEANS OPERABLE TOGETHER BY THE INDIVIDUAL FOR PRODUCING CODED PATTERNS INDICATIVE OF A LETTER OF THE WORD ANSWER SELECTED BY THE INDIVIDUAL, MEANS FOR PRODUCING A CONTROL SIGNAL IN RESPONSE ONLY TO EXACT CORRESPONDENCE BETWEEN SAID CODED PATTERNS, MEANS FOR SEQUENCING SAID MEANS FOR PROJECTING SO AS TO SEQUENTIALLY AND SUCCESSIVE-
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) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |