Patent US3977097A successfully refreshed from Google Patents.
US3977097A
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Detachable spike assembly for shoes
Assignee: Individual
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Filing: 1975-05-27
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Granted: 1976-08-31
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Expires: 1995-05-27
Abstract
Abstract A detachable spike assembly for shoes includes the combination of a spike element which is threaded at one end thereof and is tapered at the other end. A laterally-extending flange is provided integral with the spike element intermediate the ends thereof. An annular element is rotatably secured to the spike element between the flange and the threaded portion.
Inventors
- 👤 Takeshi Ueda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:19
CPC Classifications
A; A43; A43C; A43C15/00; A43C15/16; A43C15/162; A43C15/164; A43C15/165
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
143 words
A detachable spike assembly for shoes comprising in combination: a spike element having an integrally formed flange extending laterally intermediate the ends thereof, said spike element being provided with a threaded portion at one end thereof so as to be adapted for fastening to the sole of a shoe having a cooperable threaded portion; an annular element rotatably secured to said spike element between said flange and said threaded portion having a central aperture smaller than both the lateral dimention of said flange and the external diameter of said spike thread portion and deformed to secure same to said spike element about a necked portion thereof; and said necked portion being formed on said spike element adjacent said flange and having a diameter less than both the external diameter of the threaded portion of said spike element and the diameter of said aperture.
Claim 2
Dependent Claim
143 words
A detachable spike assembly for shoes comprising in combination: a spike element having an integrally formed flange extending laterally intermediate the ends thereof, said spike element being provided with a threaded portion at one end thereof so as to be adapted for fastening to the sole of a shoe having a cooperable threaded portion; an annular element rotatably secured to said spike element between said flange and said threaded portion having a central aperture smaller than both the lateral dimention of said flange and the external diameter of said spike thread portion and deformed to secure same to said spike element about a necked portion thereof; and said necked portion being formed on said spike element adjacent said flange and having a diameter less than both the external diameter of the threaded portion of said spike element and the diameter of said aperture.
Claim 3
Dependent Claim
48 words
A detachable spike assembly as in claim 1, wherein there are provided complementary tapered portions on the upper surface of the flange and on the lower surface of the annular element to provide an abutting relationship and to facilitate positioning of said annular element on said spike element.
Claim 4
Dependent Claim
40 words
A detachable spike assembly as in claim 1, wherein there is provided a non-circular segment formed on opposed sides of said spike element for cooperation with a turning tool for threading said spike element into the sole of a shoe.
Claim 5
Dependent Claim
14 words
A detachable spike assembly as in claim 1, wherein said annular element is dish-shaped.
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) | 1979-08-31 | 1980-03-01 | 1980-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-31 | 1984-03-01 | 1984-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-31 | 1988-03-01 | 1988-08-31 | $7700.00 | Window Closed / Lapsed |