US3063164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Educational device
Assignee: Individual
•
Filing: 1959-11-17
•
Granted: 1962-11-13
•
Expires: 1979-11-17
Abstract
No abstract record available.
Inventors
- 👤 Michael N Pellegrino
- 👤 Louis N Innelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:29
CPC Classifications
G; G09; G09B; G09B11/00; G09B11/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1825532A
Cited
US1857009A
Cited
US1989922A
Cited
US2068497A
Cited
GB498023A
Cited
US2277329A
Cited
US2323521A
Cited
US2333597A
Cited
US2596890A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-12 | 1966-05-14 | 1966-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-12 | 1970-05-14 | 1970-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-12 | 1974-05-14 | 1974-11-13 | $7700.00 | Window Closed / Lapsed |