US3172214A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Educational device
Assignee: ABERGE
•
Filing: 1961-10-04
•
Granted: 1965-03-09
•
Expires: 1981-10-04
Abstract
No abstract record available.
Inventors
- 👤 Carroll L Aberge
- 👤 Keith D Sullenger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:46
CPC Classifications
G; G09; G09B; G09B17/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
AN EDUCATIONAL DEVICE FOR QUESTION-ANSWER MATCHING; COMPRISING A FRAME WITH A PLURALITY OF SLIDE RECEIVING SLOTS OPENING ALONG AN EDGE OF SAID FRAME; A PLURALITY OF QUESTION VIEWING WINDOWS OVER EACH OF SAID SLOTS; AN ANSWER BLOCK RECEIVING POCKET DISPOSED IN ASSOCIATION WITH EACH OF SAID WINDOWS; A SET OF QUESTION SLIDES INSERTABLE IN A REMOVABLE FROM SAID SLOTS, WITH A PLURALITY OF QUESTION SYMBOLS APPEARING ON SAID SLIDES AT LOCATIONS TO DISPLAY A QUESTION SYMBOL AT EACH SLOT WINDOW WHEN THE SLIDE IS FULLY INSERTED IN A SLOT; A SET OF ANSWER BEARING BLOCKS REMOVABLY INSERTABLE IN ANY OF THE SAID FRAME POCKETS, EACH OF SUCH BLOCKS HAVING A DIFFERENT ANSWER FROM THE OTHERS, WHICH ANSWERS COLLECTIVELY CORRESPOND TO THE QUESTIONS COLLECTIVELY PRESENTED BY THE SET OF SLIDES,
Claim 2
Dependent Claim
129 words
AN EDUCATIONAL DEVICE FOR QUESTION-ANSWER MATCHING; COMPRISING A FRAME WITH A PLURALITY OF SLIDE RECEIVING SLOTS OPENING ALONG AN EDGE OF SAID FRAME; A PLURALITY OF QUESTION VIEWING WINDOWS OVER EACH OF SAID SLOTS; AN ANSWER BLOCK RECEIVING POCKET DISPOSED IN ASSOCIATION WITH EACH OF SAID WINDOWS; A SET OF QUESTION SLIDES INSERTABLE IN A REMOVABLE FROM SAID SLOTS, WITH A PLURALITY OF QUESTION SYMBOLS APPEARING ON SAID SLIDES AT LOCATIONS TO DISPLAY A QUESTION SYMBOL AT EACH SLOT WINDOW WHEN THE SLIDE IS FULLY INSERTED IN A SLOT; A SET OF ANSWER BEARING BLOCKS REMOVABLY INSERTABLE IN ANY OF THE SAID FRAME POCKETS, EACH OF SUCH BLOCKS HAVING A DIFFERENT ANSWER FROM THE OTHERS, WHICH ANSWERS COLLECTIVELY CORRESPOND TO THE QUESTIONS COLLECTIVELY PRESENTED BY THE SET OF SLIDES,
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-08 | 1968-09-07 | 1969-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-08 | 1972-09-07 | 1973-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-08 | 1976-09-07 | 1977-03-09 | $7700.00 | Window Closed / Lapsed |