US2495709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weight and balance training model
Assignee: Individual
•
Filing: 1946-08-20
•
Granted: 1950-01-31
•
Expires: 1966-08-20
Abstract
No abstract record available.
Inventors
- 👤 Clifford F Drown
- 👤 Norman H Zimmerman
- 👤 William C Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:17
CPC Classifications
G; G09; G09B; G09B9/00; G09B9/02; G09B9/08; G09B9/48; G06; G06G; G06G7/00; G06G7/48; G06G7/70
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-30 | 1953-08-01 | 1954-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-30 | 1957-08-01 | 1958-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-30 | 1961-08-01 | 1962-01-31 | $7700.00 | Window Closed / Lapsed |