Patent US4445289A successfully refreshed from Google Patents.
US4445289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic spike for sports shoe
Assignee: PATRICK SA
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Filing: 1982-06-07
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Granted: 1984-05-01
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Expires: 2002-06-07
Abstract
Abstract A spike, preferably made entirely of plastic material, for a sport shoe having a tapping in the sole thereof, the spike including a head portion which is capable of being rotated for locking same onto the tapping, a threaded stem extending from the head portion for engagement within the tapping, and the threaded stem being provided with a blind axial conduit for engagement by a spanner of corresponding configuration upon breakage of the spike and exposure of the blind end of the conduit.
Inventors
- 👤 Charles Beneteau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:04
CPC Classifications
A; A43; A43D; A43D999/00; A43C; A43C15/00; A43C15/16; A43C15/161
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
104 words
A spike, preferably made entirely of plastic material, for a sport shoe having securing means in the sole thereof, which spike comprises a head portion, means carried by the head portion for rotating the head portion to lock same onto the securing means, a threaded stem extending from the head portion for engagement within the securing means, and the threaded stem being provided with a blind axial conduit having a blind end and a free end, the axial conduit being of a polygonal cross-sectional configuration for engagement by a spanner of corresponding configuration upon breakage of the spike and exposure of the blind end.
Claim 2
Dependent Claim
104 words
A spike, preferably made entirely of plastic material, for a sport shoe having securing means in the sole thereof, which spike comprises a head portion, means carried by the head portion for rotating the head portion to lock same onto the securing means, a threaded stem extending from the head portion for engagement within the securing means, and the threaded stem being provided with a blind axial conduit having a blind end and a free end, the axial conduit being of a polygonal cross-sectional configuration for engagement by a spanner of corresponding configuration upon breakage of the spike and exposure of the blind end.
Claim 3
Dependent Claim
29 words
The spike of claim 1 wherein the head portion includes a shoulder and the blind end of the conduit is disposed substantially level with or slightly inside the shoulder.
Claim 4
Dependent Claim
52 words
The spike of claim 1 wherein the free end of the conduit opens onto the outside of the stem and is provided with a chamfered portion for engaging a lug of a mold in which the sole of the shoe is molded to center the spike when the sole is molded thereover.
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) | 1987-05-01 | 1987-10-31 | 1988-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-01 | 1991-10-31 | 1992-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-01 | 1995-10-31 | 1996-05-01 | $7700.00 | Window Closed / Lapsed |