US3717339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of unassisted frictionresistive exercising
Assignee: Individual
•
Filing: 1970-10-01
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Granted: 1973-02-20
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Expires: 1990-10-01
Abstract
Abstract A METHOD OF EXERCISING BODY AND ARM MUSCLES. THE OPERATOR OR USER PULLS ON ONE END OF A LENGTH OF ROPE WHICH HAS THE CENTER PORTION RELEASABLY RESTRAINED AT A SUPPORT TO PROVIDE AN ADJUSTABLE RESISTANCE OF SUBSTANTIALLY CONSTANT MAGNITUDE THROUGHOUT THE RANGE OF MOVEMENT OF THE ROPE. THE OPERATOR ALTERNATELY PULLS ON ONE END OF THE ROPE WITH ONE ARM TO MOVE THE ROPE ON AND OFF THE SHAFT. THE ROPE IS WRAPPED AROUND A SHAFT AND A SUPPORT AND OFFERS FRICTIONAL RESISTANCE TO BEING PULLED OFF THE SHAFT AND SUPPORT, AND HE THEN PULLS ON THE OTHER END OF THE ROPE WITH THE OTHER ARM TO MOVE IT ON AND OFF THE SHAFT.
Inventors
- 👤 E Holkesvick
- 👤 J Hudnall
- 👤 R Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:43
CPC Classifications
A; A63; A63B; A63B21/00; A63B21/012; A63B21/018
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) | 1976-02-20 | 1976-08-21 | 1977-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-20 | 1980-08-21 | 1981-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-20 | 1984-08-21 | 1985-02-20 | $7700.00 | Window Closed / Lapsed |