Patent US4507880A successfully refreshed from Google Patents.
US4507880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boot containing ventilation means
Assignee: PATINE SHOKAI A CORP OF JAPAN KK
•
Filing: 1983-01-18
•
Granted: 1985-04-02
•
Expires: 2003-01-18
Abstract
Abstract Described is a sports boot such as ice skate boot or ski boot which is both water-proof and air permeable and which is comprised of a boot-shaped substrate formed of natural or synthetic leather or other similar pliant material, an outer sheath formed of synthetic material and applied integrally to the outer side of the substrate, air permeable members or units provided in suitable portions in the sole part of the sheath and having ventilation holes providing for communication between the inside and outside of the sheath, and porous films or sheets made water-proof air permeable layers or sheets of porous synthetic resin material provided between side substrate and the sheath in portions where at least the ventilation holes are provided.
Inventors
- 👤 Kazuo Ohashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:33
CPC Classifications
A; A43; A43B; A43B7/00; A43B7/06; A43B7/08; A43B7/081; A43B5/00; A43B5/04; A43B5/0486; A43B5/0488; A43B5/16; A43B5/1641; A43B5/165; A43B7/12; A43B7/125
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
128 words
A boot comprising: an air permeable boot-shaped substrate having a sole portion and being made of a soft pliable material; an outer sheath made of a synthetic material integrally formed with said substrate and covering the outside thereof, said outer sheath having a sole part in registration with said sole portion of said substrate; separate air permeable means provided in at least a portion of the sole part of the outer sheath and comprising a plurality of ventilation holes for ventilation between the inside and outside of said outer sheath; and at least one waterproof air-permeable layer made of a synthetic material provided between said substrate and the outer sheath in at least the portion of the sole part of the outer sheath containing said air permeable means.
Claim 2
Dependent Claim
128 words
A boot comprising: an air permeable boot-shaped substrate having a sole portion and being made of a soft pliable material; an outer sheath made of a synthetic material integrally formed with said substrate and covering the outside thereof, said outer sheath having a sole part in registration with said sole portion of said substrate; separate air permeable means provided in at least a portion of the sole part of the outer sheath and comprising a plurality of ventilation holes for ventilation between the inside and outside of said outer sheath; and at least one waterproof air-permeable layer made of a synthetic material provided between said substrate and the outer sheath in at least the portion of the sole part of the outer sheath containing said air permeable means.
Claim 3
Dependent Claim
32 words
The boot of claim 1, wherein said separate air permeable means comprises a frame secured to said outer sheath and an air permeable disc removably attached to the inside of said frame.
Claim 4
Dependent Claim
51 words
The boot of claim 2, wherein the frame of said separate air permeable means is in the form of a ring having an upper surface and having a lug on the inner peripheral surface thereof, and said air permeable disc having means for engaging said lug to provide removable attachment therewith.
Claim 5
Dependent Claim
37 words
The boot of claim 2, wherein said separate air permeable means has an upper surface comprising substantially annular arrays of ribs and grooves and said plurality of ventilation holes are provided in radial configuration in said grooves.
Claim 6
Dependent Claim
20 words
The boot of claim 4, wherein said ribs are partially interrupted by cut-outs designed for providing communication between adjacent grooves.
Claim 7
Dependent Claim
40 words
The boot as claimed in claim 1, wherein said separate air permeable means has an upper surface comprising substantially annular arrays of ribs and grooves and a plurality of said ventilation holes are provided in radial configuration in said grooves.
Claim 8
Dependent Claim
22 words
The boot as claimed in claim 6, wherein said ribs are partially interrupted by cut-outs designed for providing communication between adjacent grooves.
Claim 9
Dependent Claim
19 words
The boot as claimed in claim 1, wherein said air permeable means is removably secured to said outer sheath.
References Cited (Backward Citations)
US220475A
Cited
US417858A
Cited
US663270A
Cited
US991457A
Cited
US997658A
Cited
US1103874A
Cited
US1236924A
Cited
US1480234A
Cited
US1742460A
Cited
US1974456A
Cited
US2207632A
Cited
US3061950A
Cited
DE1915442A1
Cited
FR2116790A5
Cited
US4102061A
Cited
FR2410448A1
Cited
DE2816189A1
Cited
US4194041A
Cited
US4290211A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-04-01 | 1988-10-01 | 1989-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-01 | 1992-10-01 | 1993-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-01 | 1996-10-01 | 1997-04-02 | $7700.00 | Window Closed / Lapsed |