Patent US5152690A successfully refreshed from Google Patents.
US5152690A
Expired / Lapsed
US
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Trilingual educational block
Assignee: Individual
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Filing: 1991-03-07
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Granted: 1992-10-06
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Expires: 2011-03-07
Abstract
Abstract Six sided blocks contain visual and tactile letters and words in English, Braille and American Signa Language (ASL). Raised surfaces on the blocks can be inked and used for trilingual printing on paper. With two letters per block a set of thirteen blocks is suitable for learning by hearing, deaf blind and deaf/blind. Adjacent sides of a block can serve to represent ASL signs which require movement or two hand positions.
Inventors
- 👤 Diane M. Todd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:45
CPC Classifications
G; G09; G09B; G09B21/00; G09B21/001; G09B21/003; G09B21/009; G09B21/04
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
72 words
A wood or plastic block for educational purposes having surfaces with multiple representations in English and American Sign Language (ASL), the block comprising at least one tactile English or ASL representation on each of its six sides, the block further comprising at least one reversed English or ASL representation on each of its six sides, whereby either English or ASL representations can be printed on paper from inked surfaces on the block.
Claim 2
Dependent Claim
72 words
A wood or plastic block for educational purposes having surfaces with multiple representations in English and American Sign Language (ASL), the block comprising at least one tactile English or ASL representation on each of its six sides, the block further comprising at least one reversed English or ASL representation on each of its six sides, whereby either English or ASL representations can be printed on paper from inked surfaces on the block.
Claim 3
Dependent Claim
39 words
The block of claim 1, further characterized in that the block has tactile and visual Braille representations to correspond to the English and ASL on the block surfaces whereby Braille can be printed in addition to English and ASL.
Claim 4
Dependent Claim
31 words
The block of claim 2, further characterized in that at least one side of the block contains an ASL hand sign other than the fingerspelling of a letter of the alphabet.
Claim 5
Dependent Claim
20 words
The block of claim 3, further characterized in that at least one side of the block contains an English word.
Claim 6
Dependent Claim
24 words
The block of claim 1, further characterized in that two adjacent sides of the block contain ASL words which together represent another ASL word.
Claim 7
Dependent Claim
31 words
The block of claim 5, further characterized in that movement of the block while looking at the two adjacent sides provides the representation of the ASL word as it is signed.
References Cited (Backward Citations)
US4378215A
Cited
US4846687A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-10-06 | 1996-04-06 | 1996-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-10-06 | 2000-04-06 | 2000-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-10-06 | 2004-04-06 | 2004-10-06 | $7700.00 | Window Closed / Lapsed |