US3314166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Educational device
Assignee: Individual
•
Filing: 1964-04-27
•
Granted: 1967-04-18
•
Expires: 1984-04-27
Abstract
No abstract record available.
Inventors
- 👤 Fred J Styes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:08
CPC Classifications
G; G09; G09B; G09B7/00; G09B7/06; G09B7/063
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
86 words
IN AN EDUCATIONAL DEVICE, A CASE HAVING A TOP WITH QUESTION AND ANSWER AREAS TO BE COVERED BY A LESSON CARD CONTAINING QUESTIONS EACH OF WHICH HAS A CORRECT AND A PLURALITY OF WRONG ANSWERD WITH APERTURES PROVIDED THROUGH THE CARD ADJACENT EACH ANSWER, SAID TOP HAVING ILLUMINATING MEANS FOR AN ANSWER FOR EACH QUESTION, SCORING MEANS RECORDING EACH CORRECT ANSWER, CONTACTS IN THE ANSWER AREA ONE OF A PLURALITY OF WHICH IS IN A CIRCUIT WHICH INDICATES A CORRECT ANSWER ON THE SCORING MEANS, A
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-17 | 1970-10-17 | 1971-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-17 | 1974-10-17 | 1975-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-17 | 1978-10-17 | 1979-04-18 | $7700.00 | Window Closed / Lapsed |