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Patent US2542074A successfully refreshed from Google Patents.
US2542074A
Expired / Lapsed
US
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Exerciser for the carpal-tarsal joints
Assignee: Individual
•
Filing: 1949-11-26
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Granted: 1951-02-20
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Expires: 1969-11-26
Abstract
No abstract record available.
Inventors
- 👤 Bierman William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:52
CPC Classifications
A; A63; A63B; A63B23/00; A63B23/035; A63B23/12; A63B23/14; A63B23/04; A63B23/08; A63B23/085; A63B2208/00; A63B2208/02; A63B2208/0242; A63B2208/0252
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) | 1954-02-19 | 1954-08-21 | 1955-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-19 | 1958-08-21 | 1959-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-19 | 1962-08-21 | 1963-02-20 | $7700.00 | Window Closed / Lapsed |