US2223309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exercising device
Assignee: Individual
•
Filing: 1940-04-03
•
Granted: 1940-11-26
•
Expires: 1960-04-03
Abstract
No abstract record available.
Inventors
- 👤 Swanson John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:39
CPC Classifications
A; A63; A63B; A63B23/00; A63B21/00; A63B21/00058; A63B21/00069; A63B21/00072; A63B21/15; A63B21/151; A63B21/154; A63B21/159; A63B21/40; A63B21/4027; A63B21/4033; A63B21/4035; A63B21/4041; A63B21/4047; A63B71/00; A63B71/02; A63B71/023; A63B2071/026; A63B2071/027; A63B21/02; A63B21/023; A63B21/04; A63B21/0407; A63B21/0421; A63B21/0428; A63B21/0442; A63B21/055; A63B21/0552; A63B2208/00; A63B2208/02; A63B2208/0204
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-11-26 | 1944-05-27 | 1944-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-11-26 | 1948-05-27 | 1948-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-11-26 | 1952-05-27 | 1952-11-26 | $7700.00 | Window Closed / Lapsed |