US4656761A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Footwear reinforcement
Assignee: MINING INDUSTRY RESEARCH ORGANIZATION OF CANADA 2550 TORONOTO DOMINION CENTRE TORONOTO ONTARIO CANADA A Co OF CANADA
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Filing: 1986-05-15
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Granted: 1987-04-14
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Expires: 2006-05-15
Abstract
Abstract A footwear reinforcement which comprises a toe cap portion having a curved end wall which curves rearwardly at the top into an upper wall and which curves on opposite sides into opposed side walls integral with the upper wall, a bottom wall integral with lower edges of the front and side walls. A series of longitudinally-spaced transversely-extending curved ribs extend from one side of the reinforcement to the other side behind the toe cap portion and are connected at their transversely opposite ends to a rearwardly extending portion of the bottom wall of the toe cap portion.
Inventors
- 👤 Ronald D. Lord
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:08
CPC Classifications
A; A43; A43C; A43C13/00; A43C13/14; A43B; A43B23/00; A43B23/08; A43B23/081; A43B23/086; A43B23/087
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A footwear reinforcement formed as an integral moulding of synthetic plastic material and comprising a toe cap portion having a curved front end wall curving rearwardly at the top into an upper wall and curving on opposite sides into opposed side walls integral with the upper wall, a bottom wall integral with lower edges of the front and side walls, said bottom wall having a rearwardly extending portion, and a series if longitudinally-spaced, transversely extending curved ribs with transversely opposite ends extending from one side of the reinforcement to the other side behind the toe cap portion and integral at their transversely opposite ends with the rearwardly extending portion of the bottom wall of the toe cap portion.
Claim 2
Dependent Claim
118 words
A footwear reinforcement formed as an integral moulding of synthetic plastic material and comprising a toe cap portion having a curved front end wall curving rearwardly at the top into an upper wall and curving on opposite sides into opposed side walls integral with the upper wall, a bottom wall integral with lower edges of the front and side walls, said bottom wall having a rearwardly extending portion, and a series if longitudinally-spaced, transversely extending curved ribs with transversely opposite ends extending from one side of the reinforcement to the other side behind the toe cap portion and integral at their transversely opposite ends with the rearwardly extending portion of the bottom wall of the toe cap portion.
References Cited (Backward Citations)
DE660167C
Cited
CA783319A
Cited
US2393810A
Cited
GB678031A
Cited
US3102347A
Cited
US3406469A
Cited
DE2027661A1
Cited
US4231170A
Cited
GB2050144A
Cited
FR2525443A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-04-13 | 1990-10-13 | 1991-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-13 | 1994-10-13 | 1995-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-13 | 1998-10-13 | 1999-04-14 | $7700.00 | Window Closed / Lapsed |