US4863386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Child's learning calendar
Assignee: Individual
•
Filing: 1988-09-08
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Granted: 1989-09-05
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Expires: 2008-09-08
Abstract
Abstract A child's learning calendar is set forth to enable a child's association of various shapes and recognize same and simultaneously gain understanding of the sequence and passage of days of the week. The calendar includes seven pairs of matched cards associating a day of the week with a predetermined configuration wherein the cards are each formed at respective engaging edges with extended elecrical contacts whereby positioning of the appropriate and predetermined matched pairs of cards within a pair of overlying compartments, the proper positioning of electrodes will complete an electrical circuit to illuminate a light bulb pair to indicate proper matching of the cards.
Inventors
- 👤 Mary A. Maxey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:01
CPC Classifications
G; G09; G09B; G09B7/00; G09B19/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
249 words
An educational calendar apparatus comprising in combination, an upper board integrally secured to an underlying lower board, the upper board including a row of upper compartments of a predetermined number and underlying adjacent row of lower compartments of a like predetermined number, and a date card positionable in each upper compartment, and a configuration card positioned on each of said lower compartments, said date cards and said configuration cards each equaling said predetermined number, and said lower board including an electrical circuit and an upper and lower chamber associated with said electrical circuit for accepting a complementary date and configuration card, and wherein each date card includes an underlying edge positioned electrical contact, and each configuration card includes an upper edge positioned electrical contact wherein said complementary date and configuration cards are determined by said electrical contacts being aligned with one another when said date card and said configuration card are positioned within said upper and lower chambers of said lower board, and each date card and configuration card includes a side electrical contact positioned on a side thereof wherein each of said side positioned electrical contacts is positioned for engaging a respective upper and lower electrical contact switch within respective upper and lower chambers and a light bulb associated with each upper and lower chamber in electrical communication with a battery whereupon positioning of a complimentary date and configuration card within said upper and lower chamber, said electrical circuit will be completed for illumination of said light bulbs.
Claim 2
Dependent Claim
249 words
An educational calendar apparatus comprising in combination, an upper board integrally secured to an underlying lower board, the upper board including a row of upper compartments of a predetermined number and underlying adjacent row of lower compartments of a like predetermined number, and a date card positionable in each upper compartment, and a configuration card positioned on each of said lower compartments, said date cards and said configuration cards each equaling said predetermined number, and said lower board including an electrical circuit and an upper and lower chamber associated with said electrical circuit for accepting a complementary date and configuration card, and wherein each date card includes an underlying edge positioned electrical contact, and each configuration card includes an upper edge positioned electrical contact wherein said complementary date and configuration cards are determined by said electrical contacts being aligned with one another when said date card and said configuration card are positioned within said upper and lower chambers of said lower board, and each date card and configuration card includes a side electrical contact positioned on a side thereof wherein each of said side positioned electrical contacts is positioned for engaging a respective upper and lower electrical contact switch within respective upper and lower chambers and a light bulb associated with each upper and lower chamber in electrical communication with a battery whereupon positioning of a complimentary date and configuration card within said upper and lower chamber, said electrical circuit will be completed for illumination of said light bulbs.
Claim 3
Dependent Claim
44 words
An educational calendar apparatus as set forth in claim 1 wherein a row of teaching cards are positioned overlying said upper and lower compartments wherein said teaching cards are integrally secured to said upper board for indication of said complimentary date and configuration cards.
Claim 4
Dependent Claim
16 words
An educational calendar apparatus as set forth in claim 4 wherein said predetermined number equals seven.
Claim 5
Dependent Claim
31 words
An educational calendar apparatus as set forth in claim 3 wherein each upper and lower compartment includes a slot for selectively positioning a date and configuration card selectively within each compartment.
Claim 6
Dependent Claim
55 words
An education calendar apparatus as set forth in claim 6 wherein a suspension cord is secured to said upper board for positioning of said apparatus onto a vertical surface and a base plate integrally secured to a lowermost portion of said lower board is provided for positioning of said apparatus upon a horizontal support surface.
References Cited (Backward Citations)
US2512485A
Cited
US3389479A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-09-04 | 1993-03-06 | 1993-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-04 | 1997-03-06 | 1997-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-04 | 2001-03-06 | 2001-09-05 | $7700.00 | Window Closed / Lapsed |