Patent US3479034A successfully refreshed from Google Patents.
US3479034A
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US
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Device for amusement or educational purposes comprising magnetically attractable marker means
Assignee: Individual
•
Filing: 1966-12-20
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Granted: 1969-11-18
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Expires: 1986-12-20
Abstract
No abstract record available.
Inventors
- 👤 Heinz Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:18
CPC Classifications
A; A63; A63F; A63F3/00; A63F3/00694; G; G09; G09B; G09B1/00; G09B1/02; G09B1/04; G09B1/06; G09B1/08; A63F3/00173; A63F3/00574; A63F2003/0063; A63F3/00895; A63F2003/00899; A63F2003/00927; A63F2003/0093
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US611545A
Cited
US1225787A
Cited
CH160473A
Cited
US2339209A
Cited
US2525738A
Cited
US2590002A
Cited
US2665913A
Cited
US2782038A
Cited
US2814909A
Cited
US2956807A
Cited
US2998973A
Cited
US2995372A
Cited
US3237941A
Cited
US3195894A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-17 | 1973-05-19 | 1973-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-17 | 1977-05-19 | 1977-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-17 | 1981-05-19 | 1981-11-18 | $7700.00 | Window Closed / Lapsed |