US2496498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Educational toy
Assignee: VERNA P SHIELDS
•
Filing: 1947-08-09
•
Granted: 1950-02-07
•
Expires: 1967-08-09
Abstract
No abstract record available.
Inventors
- 👤 John C Shields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:49
CPC Classifications
G; G09; G09B; G09B1/00; G09B1/02; G09B1/16; G09B1/18; G09B1/20; A; A63; A63F; A63F9/00; A63F9/0098
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US306464A
Cited
US507851A
Cited
US594178A
Cited
US876739A
Cited
US1256224A
Cited
US1457360A
Cited
US1391986A
Cited
US2411717A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |