Patent US3117384A successfully refreshed from Google Patents.
US3117384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manipulatable teaching aid
Assignee: Individual
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Filing: 1962-03-14
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Granted: 1964-01-14
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Expires: 1982-03-14
Abstract
No abstract record available.
Inventors
- 👤 Roman F Billis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:23
CPC Classifications
G; G09; G09B; G09B19/00; G09B19/02; Y; Y10; Y10S; Y10S273/00; Y10S273/02; Y10S273/30; Y10S446/00; Y10S446/901; Y10T; Y10T428/00; Y10T428/24; Y10T428/24008; Y10T428/24017
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
AN ARTICLE FOR TEACHING ARITHEMETIC COMPRISING A SOLID OF SUBSTANTIALLY SPHERICAL SHAPE DIVIDED INTO SEPARABLE PORTIONS HAVING CONFRONTING PLANAR SURFACES IN CLOSE JUXTAPOSITION WHEN ASSEMBLED TO FORM SAID SHAPE, SAID SURFACES HAVING SHEET MATERIAL AFFIXED THEREON FOR RELEASABLY HOLDING SAID PORTIONS IN SECURE COOPERATING RELATIONSHIP WHEN ASSEMBLED TO FORM SAID SOLID, SAID MATERIAL COMPRISING A PLURALITY OF MINUTE HOOKS AND LOOPS ADAPTED TO OPERATIVELY ENGAGE EACH OTHER AND REMAIN THUS ENGAGED UNTIL SEPARATED BY SUBSTANTIAL EXTERNAL FORCE APPLIED TO SAID PORTIONS, SAID SEPARABLE PORTIONS BEING DEFINED BY AT LEAST ONE PLANE OF SEPARATION PASSING THROUGH THE GEOMETRIC CENTER OF SAID SOLID, AND AN INDENTED AREA IN THE EXTERNAL SURFACE OF SAID SOLID, SAID PLANE PASSING THROUGH SAID AREA SO THAT GENERALLY OPPOSING FORCES APPLIED TO SAID AREA IN A DIRECTION GENERALLY AWAY FROM SAID PLANE AND ON OPPOSITE SIDES THEREOF CAUSE SEPARATION OF SAID PORTIONS FROM EACH OTHER WHEREBY SAID SOLID IS DISASSEMBLED.
Claim 2
Dependent Claim
153 words
AN ARTICLE FOR TEACHING ARITHEMETIC COMPRISING A SOLID OF SUBSTANTIALLY SPHERICAL SHAPE DIVIDED INTO SEPARABLE PORTIONS HAVING CONFRONTING PLANAR SURFACES IN CLOSE JUXTAPOSITION WHEN ASSEMBLED TO FORM SAID SHAPE, SAID SURFACES HAVING SHEET MATERIAL AFFIXED THEREON FOR RELEASABLY HOLDING SAID PORTIONS IN SECURE COOPERATING RELATIONSHIP WHEN ASSEMBLED TO FORM SAID SOLID, SAID MATERIAL COMPRISING A PLURALITY OF MINUTE HOOKS AND LOOPS ADAPTED TO OPERATIVELY ENGAGE EACH OTHER AND REMAIN THUS ENGAGED UNTIL SEPARATED BY SUBSTANTIAL EXTERNAL FORCE APPLIED TO SAID PORTIONS, SAID SEPARABLE PORTIONS BEING DEFINED BY AT LEAST ONE PLANE OF SEPARATION PASSING THROUGH THE GEOMETRIC CENTER OF SAID SOLID, AND AN INDENTED AREA IN THE EXTERNAL SURFACE OF SAID SOLID, SAID PLANE PASSING THROUGH SAID AREA SO THAT GENERALLY OPPOSING FORCES APPLIED TO SAID AREA IN A DIRECTION GENERALLY AWAY FROM SAID PLANE AND ON OPPOSITE SIDES THEREOF CAUSE SEPARATION OF SAID PORTIONS FROM EACH OTHER WHEREBY SAID SOLID IS DISASSEMBLED.
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) | 1967-01-13 | 1967-07-15 | 1968-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-13 | 1971-07-15 | 1972-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-13 | 1975-07-15 | 1976-01-14 | $7700.00 | Window Closed / Lapsed |