Patent US2835492A successfully refreshed from Google Patents.
US2835492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pirouette exerciser
Assignee: Individual
•
Filing: 1955-04-15
•
Granted: 1958-05-20
•
Expires: 1975-04-15
Abstract
No abstract record available.
Inventors
- 👤 Londe Fred J La
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:46
CPC Classifications
A; A63; A63B; A63B22/00; A63B22/14; A63B2208/00; A63B2208/12
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) | 1961-05-19 | 1961-11-18 | 1962-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-19 | 1965-11-18 | 1966-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-19 | 1969-11-18 | 1970-05-20 | $7700.00 | Window Closed / Lapsed |