Patent US5055805A successfully refreshed from Google Patents.
US3097448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic toy
Assignee: —
•
Filing: —
•
Granted: 1963-07-16
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Expires: 1980-07-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:08
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A MAGNETIC TOY COMPRISING A FERROUS BAR HAVING A ROUND PERIPHERAL SURFACE, A RELATIVELY THIN MAGNETIC DISC OF REDUCED DIAMETER WITH ITS PERIPHERAL EDGE SURFACE ADAPTED TO BE PLACED AT THE UPPER END OF THE BAR SO THAT THE RESULTANT OF THE MAGNETIC AND GRAVITY FORCES WILL CAUSE SAID DISC TO TRAVEL AROUND THE AXIS OF SAID BAR IN A SPIRAL PATHWAY, SAID DISC BEING PROVIDED WITH A CENTRAL OPENING, A TOY OBJECT, AND A SPINDLE RECEIVED IN THE OPENING OF SAID DISC CONNECTING SAID TOY OBJECT WITH SAID DISC.
Claim 2
Dependent Claim
90 words
A MAGNETIC TOY COMPRISING A FERROUS BAR HAVING A ROUND PERIPHERAL SURFACE, A RELATIVELY THIN MAGNETIC DISC OF REDUCED DIAMETER WITH ITS PERIPHERAL EDGE SURFACE ADAPTED TO BE PLACED AT THE UPPER END OF THE BAR SO THAT THE RESULTANT OF THE MAGNETIC AND GRAVITY FORCES WILL CAUSE SAID DISC TO TRAVEL AROUND THE AXIS OF SAID BAR IN A SPIRAL PATHWAY, SAID DISC BEING PROVIDED WITH A CENTRAL OPENING, A TOY OBJECT, AND A SPINDLE RECEIVED IN THE OPENING OF SAID DISC CONNECTING SAID TOY OBJECT WITH SAID DISC.
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) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |