US2675856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Balancing and walking device
Assignee: Individual
•
Filing: 1952-02-04
•
Granted: 1954-04-20
•
Expires: 1972-02-04
Abstract
No abstract record available.
Inventors
- 👤 Therese C Abdallah
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:39
CPC Classifications
A; A61; A61H; A61H3/00; A61H3/008; A61H2201/00; A61H2201/01; A61H2201/0192; A61H2201/16; A61H2201/1602; A61H2201/1614; A61H2201/1616; A61H2201/1619; A61H2201/1621; A61H2201/165
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
FR536402A
Cited
US1072959A
Cited
GB129939A
Cited
US1481503A
Cited
US1577458A
Cited
US1611807A
Cited
US2369040A
Cited
US2574178A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |