Patent US4590693A successfully refreshed from Google Patents.
US4590693A
Expired / Lapsed
US
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Baseball or softball shoe sole
Assignee: Mizuno Corp
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Filing: 1984-06-19
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Granted: 1986-05-27
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Expires: 2004-06-19
Abstract
Abstract A baseball or softball shoe with its sole having a plurality of individual spikes which limitedly penetrate into the ground to the optimum depth to enhance the player's ability to run fast. A plurality of projections are formed with the sole adjacent to its periphery in forefoot and heel regions of the sole. The forefoot region is also provided with a plurality of second projections integral with the sole in the inside of the spikes.
Inventors
- 👤 Yukio Kawashima
- 👤 Kounosuke Nishijima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:18
CPC Classifications
A; A43; A43C; A43C15/00; A43C15/16; A43C15/162
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A baseball or softball shoe comprising: a synthetic resin sole including a plurality of projections formed integrally therewith and being located adjacent to a periphery of the synthetic resin sole in its forefoot and heel regions, square rims formed integrally with the sole in each of the forefoot and heel regions defining square recesses at the bottom of the synthetic resin sole, an internally threaded fitting embedded in the synthetic resin sole at the bottom of each of the square recesses, an individual L-shaped spike having a base received in each of the square recesses, said base being shaped complementary to said square recesses, a screw threadedly received in each internally threaded fitting through the base of the spike to secure the spike to the sole, and a plurality of second projections formed integrally with the sole and being located centrally in its forefoot region.
Claim 2
Dependent Claim
145 words
A baseball or softball shoe comprising: a synthetic resin sole including a plurality of projections formed integrally therewith and being located adjacent to a periphery of the synthetic resin sole in its forefoot and heel regions, square rims formed integrally with the sole in each of the forefoot and heel regions defining square recesses at the bottom of the synthetic resin sole, an internally threaded fitting embedded in the synthetic resin sole at the bottom of each of the square recesses, an individual L-shaped spike having a base received in each of the square recesses, said base being shaped complementary to said square recesses, a screw threadedly received in each internally threaded fitting through the base of the spike to secure the spike to the sole, and a plurality of second projections formed integrally with the sole and being located centrally in its forefoot region.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-05-26 | 1989-11-25 | 1990-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-26 | 1993-11-25 | 1994-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-26 | 1997-11-25 | 1998-05-27 | $7700.00 | Window Closed / Lapsed |