US4369967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Training aid for drilling muscles
Assignee: Individual
•
Filing: 1981-04-01
•
Granted: 1983-01-25
•
Expires: 2001-04-01
Abstract
Abstract A training aid for drilling muscles of a user comprises a rectangular lead plate which can be easily bent, and a cover member made of soft and resilient rubber. The lead plate is completely surrounded by the cover member. The training aid can be mounted on user's wrist, ankle, arm, leg, neck, etc. by bending the lead plate. More than one training aid can be piled one over another.
Inventors
- 👤 Akira Kimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:07
CPC Classifications
A; A63; A63B; A63B21/00; A63B21/06; A63B21/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A training aid for drilling muscles of a user comprising: a flexible plate made of lead; and a cover member made of soft and resilient material such as rubber and synthetic resin and completely surrounding the plate; at least one projection formed integrally with the cover member on one main surface of the training aid and at least one recess formed in the cover member on the other main surface of the training aid whereby a plurality of training aids are piled one over another and the training aid is mounted around a user's part such as wrist, ankle, arm, leg and neck merely be bending the lead plate.
Claim 2
Dependent Claim
109 words
A training aid for drilling muscles of a user comprising: a flexible plate made of lead; and a cover member made of soft and resilient material such as rubber and synthetic resin and completely surrounding the plate; at least one projection formed integrally with the cover member on one main surface of the training aid and at least one recess formed in the cover member on the other main surface of the training aid whereby a plurality of training aids are piled one over another and the training aid is mounted around a user's part such as wrist, ankle, arm, leg and neck merely be bending the lead plate.
References Cited (Backward Citations)
US991256A
Cited
US2017071A
Cited
CH354571A
Cited
US3490766A
Cited
GB1210385A
Cited
US3580572A
Cited
US4197720A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-01-24 | 1986-07-26 | 1987-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-24 | 1990-07-26 | 1991-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-24 | 1994-07-26 | 1995-01-25 | $7700.00 | Window Closed / Lapsed |