US2916850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined educational device and toy
Assignee: Individual
•
Filing: 1958-02-10
•
Granted: 1959-12-15
•
Expires: 1978-02-10
Abstract
No abstract record available.
Inventors
- 👤 Bertha V Vlachos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:17
CPC Classifications
F; F16; F16K; F16K25/00; F16K25/04; A; A63; A63F; A63F3/00; A63F3/04; A63F3/0434; A63F2003/0439; A63F2003/0444; A63F9/00; A63F9/001; A63F2009/0033; A63F2009/0035; A63F3/00003; A63F3/00088; A63F3/00091
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE194420C
Cited
US465824A
Cited
US1018625A
Cited
US1659810A
Cited
US2283585A
Cited
US2204952A
Cited
US2434250A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-14 | 1963-06-15 | 1963-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-14 | 1967-06-15 | 1967-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-14 | 1971-06-15 | 1971-12-15 | $7700.00 | Window Closed / Lapsed |