US3110116A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Educative device
Assignee: Individual
•
Filing: 1961-02-16
•
Granted: 1963-11-12
•
Expires: 1981-02-16
Abstract
No abstract record available.
Inventors
- 👤 Ezra Leon Ben
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:54
CPC Classifications
G; G09; G09B; G09B19/00; G09B19/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
AN EDUCATIONAL DEVICE COMPRISING A CONTAINER HAVING MOUNTED THEREIN, TWO DISCS ROTATABLE IN THE SAME PLANE; A CYLINDER MOUNTED IN THE CONTAINER, BETWEEN SAID DISCS, AND ROTATABLE IN A PLANE PERPENDICULAR TO THE PLANE OF THE AFOREMENTIONED DISCS, EACH OF SAID DISCS AND CYLINDERS HAVING CHARACTERS PRINTED THEREON AND ONLY ONE CHARACTER ON EACH DISC OR CYLINDER BEING VISIBLE THROUGH THE UPPER PORTION OF SAID CONTAINER AT THE POINT CLOSEST THE NEAREST DISC OR CYLINDER; AND A PLURALITY OF SLIDE MEANS ADAPTED TO RANDOMLY ROTATE EACH OF SAID DISCS AND SAID CYLINDER WITHOUT AFFECTING THE OTHER TWO, SAID SLIDES BEING NORMALLY BIASED OUTWARDLY FROM SAID CONTAINER BUT ADAPTED TO BE DEPRESSED INWARDLY THEREOF BY AN OPERATOR, AND ALL OF SAID SLIDES EXTENDING THROUGH THE SAME FACE OF THE CONTAINER, AND EACH ONE THEREOF POSITIONED NEAREST THE CYLINDER OR DISC TO BE ACTUATED THEREBY.
Claim 2
Dependent Claim
143 words
AN EDUCATIONAL DEVICE COMPRISING A CONTAINER HAVING MOUNTED THEREIN, TWO DISCS ROTATABLE IN THE SAME PLANE; A CYLINDER MOUNTED IN THE CONTAINER, BETWEEN SAID DISCS, AND ROTATABLE IN A PLANE PERPENDICULAR TO THE PLANE OF THE AFOREMENTIONED DISCS, EACH OF SAID DISCS AND CYLINDERS HAVING CHARACTERS PRINTED THEREON AND ONLY ONE CHARACTER ON EACH DISC OR CYLINDER BEING VISIBLE THROUGH THE UPPER PORTION OF SAID CONTAINER AT THE POINT CLOSEST THE NEAREST DISC OR CYLINDER; AND A PLURALITY OF SLIDE MEANS ADAPTED TO RANDOMLY ROTATE EACH OF SAID DISCS AND SAID CYLINDER WITHOUT AFFECTING THE OTHER TWO, SAID SLIDES BEING NORMALLY BIASED OUTWARDLY FROM SAID CONTAINER BUT ADAPTED TO BE DEPRESSED INWARDLY THEREOF BY AN OPERATOR, AND ALL OF SAID SLIDES EXTENDING THROUGH THE SAME FACE OF THE CONTAINER, AND EACH ONE THEREOF POSITIONED NEAREST THE CYLINDER OR DISC TO BE ACTUATED THEREBY.
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-11 | 1967-05-13 | 1967-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-11 | 1971-05-13 | 1971-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-11 | 1975-05-13 | 1975-11-12 | $7700.00 | Window Closed / Lapsed |