Patent CH217745A successfully refreshed from Google Patents.
US2593244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Writing game planchette
Assignee: Individual
•
Filing: 1950-03-20
•
Granted: 1952-04-15
•
Expires: 1970-03-20
Abstract
No abstract record available.
Inventors
- 👤 John J Batcha
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:48
CPC Classifications
B; B43; B43K; B43K23/00; B43K23/02; B43K23/04; F; F16; F16B; F16B2/00; F16B2/02; F16B2/18; F16B9/00; F16B9/05; F16B9/052; F16B9/056; F16B2200/00; F16B2200/50; F16B2200/503
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1452741A
Cited
US1870677A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-15 | 1955-10-15 | 1956-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-15 | 1959-10-15 | 1960-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-15 | 1963-10-15 | 1964-04-15 | $7700.00 | Window Closed / Lapsed |