Patent US4315748A successfully refreshed from Google Patents.
US4315748A
Expired / Lapsed
US
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Alphabetic device
Assignee: University of Alberta
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Filing: 1979-03-22
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Granted: 1982-02-16
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Expires: 1999-03-22
Abstract
Abstract An alphabetic device is set forth to facilitate an initial reading process by providing additional discrimination cues to letters of traditional written languages. Letters of a written language are reproduced on a substrate such as paper, plastic etc. and confined within a zone. The zone, also reproduced on the substrate, is made up of dots, dashes, or lines arranged in regular arrays. A different zone is used for each letter such that each letter is always associated with its characteristic zone.
Inventors
- 👤 Jorge Frascara
- 👤 Walter Jungkind
- 👤 Carol J. Ladan
- 👤 Thomas M. Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:42
CPC Classifications
G; G09; G09B; G09B17/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
An alphabetic device to be used in an initial reading process comprising: a substrate comprising at least one of paper, metal, plastic, and wood having reproduced on it a plurality of letters of a traditional written language, each letter being reproduced within the confines of a zone, said zone being reproduced on said substrate and being made up of components selected from dots, dashes, and lines arranged in regular arrays, and each zone being distinct from each other zone and unique to the letter confined therein, whereby the zone provides an additional visual discrimination cue to aid in letter recognition.
Claim 2
Dependent Claim
100 words
An alphabetic device to be used in an initial reading process comprising: a substrate comprising at least one of paper, metal, plastic, and wood having reproduced on it a plurality of letters of a traditional written language, each letter being reproduced within the confines of a zone, said zone being reproduced on said substrate and being made up of components selected from dots, dashes, and lines arranged in regular arrays, and each zone being distinct from each other zone and unique to the letter confined therein, whereby the zone provides an additional visual discrimination cue to aid in letter recognition.
References Cited (Backward Citations)
US3571951A
Cited
US4045884A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-02-15 | 1985-08-17 | 1986-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-02-15 | 1989-08-17 | 1990-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-02-15 | 1993-08-17 | 1994-02-16 | $7700.00 | Window Closed / Lapsed |