Patent US4601474A successfully refreshed from Google Patents.
US4601474A
Expired / Lapsed
US
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Self-retrieving attack ball
Assignee: Individual
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Filing: 1985-01-22
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Granted: 1986-07-22
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Expires: 2005-01-22
Abstract
Abstract A self-defense device comprising a spherical member and a tether cord. The tether cord is wound on a self-winding spool that is rotatably attached to the interior of the spherical member. The free end of the tether cord has a loop formed thereat for securing the device to a person's wrist. The spherical member may have an outer lining of elastic material or may have a plurality of barbs on its exterior surface.
Inventors
- 👤 Hyok S. Lew
- 👤 Yon K. Lew
- 👤 Hyon S. Lew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:03
CPC Classifications
A; A63; A63B; A63B67/00; A63B67/10; F; F41; F41B; F41B15/00; F41B15/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A self-retrieving attack ball comprising in combination: a closed shell member including a hole through the wall of said closed shell member; a self-rewinding spool rotatably disposed within said closed shell member; a cord slidably engaging and extending through said hole through the wall of said closed shell member wherein one extremity of said cord is anchored to said self-rewinding spool and the other extremity includes means for stopping said other extremity of said cord from retracting into the inside of said closed shell member, said means comprising a loop mmeber; and the outer surface of said closed shell member including a plurality of protrusions; whereby, said self-retrieving attack ball automatically returns to the palm of the user after said self-retrieving attack ball is thrown by the user when said other extremity of said cord is secured to the user's hand.
Claim 2
Dependent Claim
141 words
A self-retrieving attack ball comprising in combination: a closed shell member including a hole through the wall of said closed shell member; a self-rewinding spool rotatably disposed within said closed shell member; a cord slidably engaging and extending through said hole through the wall of said closed shell member wherein one extremity of said cord is anchored to said self-rewinding spool and the other extremity includes means for stopping said other extremity of said cord from retracting into the inside of said closed shell member, said means comprising a loop mmeber; and the outer surface of said closed shell member including a plurality of protrusions; whereby, said self-retrieving attack ball automatically returns to the palm of the user after said self-retrieving attack ball is thrown by the user when said other extremity of said cord is secured to the user's hand.
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) | 1989-07-21 | 1990-01-20 | 1990-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-21 | 1994-01-20 | 1994-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-21 | 1998-01-20 | 1998-07-22 | $7700.00 | Window Closed / Lapsed |