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US3289333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Educational toy book
Assignee: Individual
•
Filing: 1964-09-10
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Granted: 1966-12-06
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Expires: 1984-09-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Benjamin A Watrous
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:39
CPC Classifications
G; G09; G09B; G09B17/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
AN AID TO EDUCATION COMPRISING A BOOK HAVING AT LEAST TWO OPPOSED HINGED LEAVES, AN INFLATABLE AND DEFLATABLE CHARACTER ADAPTED TO BE SANDWICHED AND NORMALLY DEFLATED BETWEEN THE OPPOSING FACES OF SAID LEAVES, AND AN ASSOCIATIVELY COOPERABLE SOURCE OF AIR BUILT INTO SAID
Claim 2
Dependent Claim
43 words
AN AID TO EDUCATION COMPRISING A BOOK HAVING AT LEAST TWO OPPOSED HINGED LEAVES, AN INFLATABLE AND DEFLATABLE CHARACTER ADAPTED TO BE SANDWICHED AND NORMALLY DEFLATED BETWEEN THE OPPOSING FACES OF SAID LEAVES, AND AN ASSOCIATIVELY COOPERABLE SOURCE OF AIR BUILT INTO SAID
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) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |