Patent US2668709A successfully refreshed from Google Patents.
US2668709A
Expired / Lapsed
US
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Medical exercising apparatus
Assignee: Individual
•
Filing: 1950-09-26
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Granted: 1954-02-09
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Expires: 1970-09-26
Abstract
No abstract record available.
Inventors
- 👤 Rudolph J Boyko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:25
CPC Classifications
A; A63; A63B; A63B22/00; A63B22/06; A63B22/0694; A63B21/00; A63B21/16; A63B21/1609; A63B21/169; A63B22/0002; A63B22/0005; A63B22/0007; A63B22/0605; A63B2022/0635; A63B2022/0652; A63B21/1681; A63B22/0015; A63B22/0023; A63B2210/00; A63B2210/02
Claims Analysis
Total Claims: 0
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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) | 1957-02-08 | 1957-08-10 | 1958-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-08 | 1961-08-10 | 1962-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-08 | 1965-08-10 | 1966-02-09 | $7700.00 | Window Closed / Lapsed |