US3401470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Educational apparatus
Assignee: PALISADES EDUCATIONAL FOUNDATION Inc
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Filing: 1966-05-04
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Granted: 1968-09-17
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Expires: 1986-05-04
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Gaven
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:12
CPC Classifications
G; G09; G09B; G09B5/00; G09B5/06; G09B5/062
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
IN A TEACHING MACHINE: THE COMBINATION OF A WINDOW HAVING A COVER GLASS, MEANS FOR EXHIBITING ITEMS OF INFORMATION THROUGH SAID WINDOW, TRANSPARENT CONDUCTIVE SURFACE AREAS ON SAID COVER GLASS PREDETERMINATELY LOCATED RELATIVE TO THE ITEMS TO BE EXHIBITED, A MANUAL SELECTOR DEVICE OF A PENCIL-LIKE FORM HAVING A CONDUCTIVE TIP AND ADAPTED TO BE HELD IN THE HAND BY THE PUPIL AND TO BE POINTED TO SAID RESPECTIVE ITEMS IN TOUCHING CONTACT WITH SAID RESPECTIVE CONDUCTIVE AREAS TO SELECT THE RESPECTIVE ITEMS OF INFORMATION, MEANS IN SAID MACHINE FOR RESPONDING TO SELECTION OF SAID SUCCESSIVE ITEMS, AND CIRCUIT MEANS INCLUDING SAID MANUAL SELECTOR DEVICE AND RESPECTIVE CONDUCTIVE SURFACE AREAS FOR CAUSING SAID RESPONDING MEANS TO BE SUCCESSIVELY OPERATED AS SAID ITEMS ARE SUCCESIVELY SELECTED.
Claim 2
Dependent Claim
125 words
IN A TEACHING MACHINE: THE COMBINATION OF A WINDOW HAVING A COVER GLASS, MEANS FOR EXHIBITING ITEMS OF INFORMATION THROUGH SAID WINDOW, TRANSPARENT CONDUCTIVE SURFACE AREAS ON SAID COVER GLASS PREDETERMINATELY LOCATED RELATIVE TO THE ITEMS TO BE EXHIBITED, A MANUAL SELECTOR DEVICE OF A PENCIL-LIKE FORM HAVING A CONDUCTIVE TIP AND ADAPTED TO BE HELD IN THE HAND BY THE PUPIL AND TO BE POINTED TO SAID RESPECTIVE ITEMS IN TOUCHING CONTACT WITH SAID RESPECTIVE CONDUCTIVE AREAS TO SELECT THE RESPECTIVE ITEMS OF INFORMATION, MEANS IN SAID MACHINE FOR RESPONDING TO SELECTION OF SAID SUCCESSIVE ITEMS, AND CIRCUIT MEANS INCLUDING SAID MANUAL SELECTOR DEVICE AND RESPECTIVE CONDUCTIVE SURFACE AREAS FOR CAUSING SAID RESPONDING MEANS TO BE SUCCESSIVELY OPERATED AS SAID ITEMS ARE SUCCESIVELY SELECTED.
References Cited (Backward Citations)
US3281959A
Cited
US3314166A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |