US4643683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
ECO set didactic blocks/cubes
Assignee: Individual
•
Filing: 1985-05-15
•
Granted: 1987-02-17
•
Expires: 2005-05-15
Abstract
Abstract A set of didactic blocks to be used by children is provided and consists of a plurality of different shaped geometric solid members and a plurality of indicia associated with the geometric solid members to stimulate artistic creativity and at the same time teach children mathematics, science, language and the like when the blocks are manipulated in play.
Inventors
- 👤 Milagros C. Orsini
- 👤 George Spector
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:08
CPC Classifications
G; G09; G09B; G09B23/00; G09B23/02; G09B23/04; G09B1/00; G09B1/02; G09B1/16; G09B1/24; G09B1/32
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
145 words
A set of didactic blocks to be used by children which comprises: (a) a plurality of geometric solid blocks each said geometric solid block having a different shape to stimulate artistic creativity of said children when said blocks are manipulated in play; and (b) a plurality of indicia, each said indicia having different information and associated with each said geometric solid to teach said children mathematics, science, language and the like when said blocks are manipulated in play, wherein each said geometric block having a track within, and a window in alignment with said track in combination with a moveable elongated band having said indicia printed thereon, said elongated band positioned on said track so that said indicia can be viewed through said window wherein said band includes spaced indicia with means for expansion through said window to expose said indicia and seal said window.
Claim 2
Dependent Claim
145 words
A set of didactic blocks to be used by children which comprises: (a) a plurality of geometric solid blocks each said geometric solid block having a different shape to stimulate artistic creativity of said children when said blocks are manipulated in play; and (b) a plurality of indicia, each said indicia having different information and associated with each said geometric solid to teach said children mathematics, science, language and the like when said blocks are manipulated in play, wherein each said geometric block having a track within, and a window in alignment with said track in combination with a moveable elongated band having said indicia printed thereon, said elongated band positioned on said track so that said indicia can be viewed through said window wherein said band includes spaced indicia with means for expansion through said window to expose said indicia and seal said window.
Claim 3
Dependent Claim
57 words
A set of didactic blocks as recited in claim 1, wherein said window is beveled, said indicia are beveled tags and wherein said means comprise compressible portions of said band on which said tags are mounted whereby said portions expand into said window when in alignment, wherein the beveling of said window and tags facilitate the expansion.
References Cited (Backward Citations)
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Cited
US312420A
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US2378755A
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US2680315A
Cited
US3214852A
Cited
US3488880A
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) | 1990-02-16 | 1990-08-18 | 1991-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-16 | 1994-08-18 | 1995-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-16 | 1998-08-18 | 1999-02-17 | $7700.00 | Window Closed / Lapsed |