US3170247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Instructional reading material
Assignee: Individual
•
Filing: 1960-11-21
•
Granted: 1965-02-23
•
Expires: 1980-11-21
Abstract
No abstract record available.
Inventors
- 👤 Janko P Kovacevich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:01
CPC Classifications
G; G09; G09B; G09B17/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
INSTRUCTIONAL READING MATTER CONSISTING OF A SET OF DISPLAY MEANS ARRANGED AS A UNIT WITH PARALLELLY ORIENTED FACES, EACH OF SOME OF SAID DISPLAY MEANS HAVING THEREON DIFFERENT WORDS OF AT LEAST THREE LETTERS WITH THE LETTERS IN A GENERALLY UPRIGHT POSITION AND CORRECTLY ARRANGED FROM LEFT TO RIGHT BUT IN A GENERALLY CONFUSED PATTERN DIFFERENT FROM THE PATTERN ON OTHER DISPLAY MEANS OF THE SET, WITH THE NEXT ADJACENT LETTERS OF DIFFERENT COLORS AND WITH THE TERMINAL LETTERS THE SAME COLOR.
Claim 2
Dependent Claim
82 words
INSTRUCTIONAL READING MATTER CONSISTING OF A SET OF DISPLAY MEANS ARRANGED AS A UNIT WITH PARALLELLY ORIENTED FACES, EACH OF SOME OF SAID DISPLAY MEANS HAVING THEREON DIFFERENT WORDS OF AT LEAST THREE LETTERS WITH THE LETTERS IN A GENERALLY UPRIGHT POSITION AND CORRECTLY ARRANGED FROM LEFT TO RIGHT BUT IN A GENERALLY CONFUSED PATTERN DIFFERENT FROM THE PATTERN ON OTHER DISPLAY MEANS OF THE SET, WITH THE NEXT ADJACENT LETTERS OF DIFFERENT COLORS AND WITH THE TERMINAL LETTERS THE SAME COLOR.
References Cited (Backward Citations)
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US683267A
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US1456834A
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US1224742A
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US1285038A
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US1555889A
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US1732980A
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FR662863A
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US2361154A
Cited
US2809443A
Cited
US2824389A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |