Patent US3339920A successfully refreshed from Google Patents.
US3339920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Child's coordination training device
Assignee: Porter Leavitt Co
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Filing: 1965-09-09
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Granted: 1967-09-05
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Expires: 1985-09-09
Abstract
No abstract record available.
Inventors
- 👤 Donald B Moritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:37
CPC Classifications
A; A63; A63B; A63B9/00; A63B2208/00; A63B2208/12; A63B2210/00; A63B2210/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A CHILD''S EDUCATIONAL DEVICE COMPRISING AN ESSENTIALLY FRUSTA-PHYRAMIDAL STAND HAVING A TOP EDGE DEFINING A T-SHAPED RECESS AND AN ELONGATED SKILL EXERCISING MEANS COMPRISING A TREAD BEAM HAVING A T-SHAPED CROSS-SECTIONAL CONTOUR MATING WITH SAID RECESS, AND RESTING AT ONE END IN SAID RECESS IN WEIGHT SUPPORTED NON-TILTING RELATIONSHIP.
Claim 2
Dependent Claim
49 words
A CHILD''S EDUCATIONAL DEVICE COMPRISING AN ESSENTIALLY FRUSTA-PHYRAMIDAL STAND HAVING A TOP EDGE DEFINING A T-SHAPED RECESS AND AN ELONGATED SKILL EXERCISING MEANS COMPRISING A TREAD BEAM HAVING A T-SHAPED CROSS-SECTIONAL CONTOUR MATING WITH SAID RECESS, AND RESTING AT ONE END IN SAID RECESS IN WEIGHT SUPPORTED NON-TILTING RELATIONSHIP.
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) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |