CA1333318C - Method of sealing shoe in the sole region - Google Patents
Method of sealing shoe in the sole regionInfo
- Publication number
- CA1333318C CA1333318C CA000564088A CA564088A CA1333318C CA 1333318 C CA1333318 C CA 1333318C CA 000564088 A CA000564088 A CA 000564088A CA 564088 A CA564088 A CA 564088A CA 1333318 C CA1333318 C CA 1333318C
- Authority
- CA
- Canada
- Prior art keywords
- region
- insole
- waterproof
- sealing lip
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
- A43D1/00—Foot or last measuring devices; Measuring devices for shoe parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D35/00—Producing footwear
- B29D35/06—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising
- B29D35/061—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising by injection moulding
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
- A43B17/10—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined specially adapted for sweaty feet; waterproof
- A43B17/107—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined specially adapted for sweaty feet; waterproof waterproof
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B7/00—Footwear with health or hygienic arrangements
- A43B7/12—Special watertight footwear
- A43B7/125—Special watertight footwear provided with a vapour permeable member, e.g. a membrane
Landscapes
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Crushing And Grinding (AREA)
- Holders For Apparel And Elements Relating To Apparel (AREA)
Abstract
This invention relates to a method of sealing in a water-impermeable manner, the connecting region between a waterproof shoe upper and the insole region of a shoe by means of a layer of liquefiable material that is waterproof in the hardened state. The layer is injection molded onto the connecting region with the aid of an injection mold, characterized in that the injection mold is applied to the bottom sole of the shoe upper, connected to the insole region. The mold has sealing lip assembly upstanding towards the insole region and extends on both sides of the connecting region to be sealed so that the layer is injection molded into the portion confined by the sealing lip assembly.
Description
1 -~ ''33 1 8 Field Of The Invention This invention relates to a method of sealing in a water-impermeable manner, the connecting region between a waterproof shoe upper and the insole region of a shoe by means of a layer of liquefiable material that is waterproof in the hardened state.
Background Of The Invention In recent times shoes were manufactured whose shoe body or upper consists of water-impermeable, and preferably vapor-permeable material. There were problems with providing a waterproof connection between the upper and outsole to be attached.
In cementing processes using existing technology, the upper is cemented to the insole with the aid of cement and to this cemented unit, a sole is applied which may be an intermediate sole or the direct outer sole. The weak points in this solution are the areas of cementation between the insole and the upper, since the bonding cement does not seal the entire transition region between the upper and the insole. The cement also becomes brittle and thus water-permeable due to bending stresses during use of the shoe.
To overcome this problem, the unit of shoe upper and insole cemented thereto has been lined with a sock-like insert of waterproof, vapor-permeable material. For obtaining the desired shape of the insert, the insert must be sewn and hot-welded at the seams. This method may be complicated and expensive and it also may lead to other problems such as creasing and warping.
Background Of The Invention In recent times shoes were manufactured whose shoe body or upper consists of water-impermeable, and preferably vapor-permeable material. There were problems with providing a waterproof connection between the upper and outsole to be attached.
In cementing processes using existing technology, the upper is cemented to the insole with the aid of cement and to this cemented unit, a sole is applied which may be an intermediate sole or the direct outer sole. The weak points in this solution are the areas of cementation between the insole and the upper, since the bonding cement does not seal the entire transition region between the upper and the insole. The cement also becomes brittle and thus water-permeable due to bending stresses during use of the shoe.
To overcome this problem, the unit of shoe upper and insole cemented thereto has been lined with a sock-like insert of waterproof, vapor-permeable material. For obtaining the desired shape of the insert, the insert must be sewn and hot-welded at the seams. This method may be complicated and expensive and it also may lead to other problems such as creasing and warping.
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1 3~33, ~
Existing technology also includes molding a polyurethane outsole to the shoe region of a butt-to-butt upper. For doing so, it is necessary to have a bipartite injection mold that is applied to the upper from both sides thereof. This injection mold is relatively expensive. Due to the high mold costs, the shoe manufacturers are restricted to very few sole configurations.
Also, it is not possible to achieve shoes of elegant appearance with such molded-on outsoles.
SUMMARY OF THE INVENTION
This invention provides a method for sealing the connecting region between a waterproof shoe upper and the insole region of a shoe, in a water-impermeable manner by means of a layer of liquefiable material that is waterproof in the hardened state. The layer is injection molded onto the connecting region with the aid of an injection mold, characterized in that the injection mold is applied to the bottom sole of the shoe upper, connected to the insole region. The mold has a sealing lip assembly upstanding towards the insole region and extends on both sides of the connecting region to be sealed, so that the layer is injection molded into the portion confined by the sealing lip assembly.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 shows a schematic vertical sectional view of an upper to which an insole is bonded and an injection mold applied to the upper.
Figure 2 shows a schematic view of an upper to which an insole is bonded and which has an injection mold applied thereto.
., .. ,, .. . . , ~ I
1 3 ~` 331 8 DETAILED DESCRIPTION OF THE INVENTION
This invention provides an improved method for procuring a connection between an upper and insole region of a shoe that remains waterproof over a long period of time. Any type of outer sole can be used with this invention.
This invention relates to a method of sealing in a water-impermeable manner, the connecting region between a waterproof shoe upper and the insole region of a shoe by means of a layer of liquefiable material that is waterproof in the hardened state, the layer being injection molded onto the connecting region with the aid of an injection mold, characterized in that the inject;on mold is applied to the bottom sole of the shoe upper, connected to the insole region, the mold having a sealing lip assembly upstanding towards the insole region and extending on both sides of the connecting region to be sealed, and in that the layer is injection molded into the portion confined by the sealing lip assembly.
This method also enables use of a relatively simple injection mold. The injection molding die may be provided with an upstanding sealing lip having an outline that corresponds approximately to the contour of the insole. The mold has great versatility with respect to dimensions of shoes, since the exact line of application of the sealing lip to the upper provided with the insole is not a critical parameter.
Preferably, the contour of the sealing lip extends slightly inward from the outer margin of the upper. It is possible to apply any desired outersole to the layer that has been injection-molded to the upper. The molded layer need not be visible in the final product so that the aesthetic appearance of the shoe need not be impaired by such a layer.
~ ,~
.,.. , . .. ~, 1 3 ``3~1 8 The layer preferably comprises polyurethane which is liquefied for injection molding and is injection molded under a pressure of preferably 3 to 5 atm. This pressure ensures that the liquid material penetrates the region to be sealed between the insole and upper. This also ensures that the connection is waterproof.
The upper, preferably the entire upper, may be lined with a waterproof material that is preferably permeable to water vapor. Materials suitable for this to use as the liner include expanded polytetrafluoroethylene (PTFE), the liner of which is described in U.S. Patent 4,599,810, a polyester membrane, or microporous polyurethane coating.
The present invention is best understood by reference to Figures 1 and 2.
Figure 1 shows a cross-section of an upper 1 attached to an insole 4 by means of a durable cement or adhesive 3. The upper 1 may consist of different materials. Figure 1 shows two possibilities. Figure lb shows an upper consisting of a laminate 7 comprising an outer layer 9, a middle layer 11 of a water-impermeable, vapor permeable membrane as well as an inner layer 13. The laminate 7 may be lined on the inside with a lining 15.
Figure la shows an embodiment of an upper comprising an outer layer 17, such as leather, which is lined with a laminate that serves as a lining and also contains a water-impermeable, vapor-permeable membrane. Extending from the outer layer 17, is a lasting allowance 19. The lasting allowance is the amount of upper material of the shoe that needs to be pulled under in order to bond the upper to the sole. The lasting allowance in Figure la has a loose end portion 21 which is not cemented to the insole 4.
Y' ~ ~.
1 3 '~3~, 8 The embodiment shown in Figure lb has a lining 15, preferably designed to be shorter in the lasting allowance than laminate 7. Only the section of laminate 15 having the lining is cemented to insole 4. The portion of the laminate 7 projecting beyond the lining form the loose portion of the lasting allowance 19.
In Figure la, the outer layer 17 is shorter in the region of the lasting allowance 19 than the laminate layer 7 applied to the outer layer 17. After the upper has been cemented to the insole 4, the front end portion 21 of the laminate 7 remains unconnected with the insole 4.
Figure 1 also shows an injection mold 30 having a sealing lip 31 that is closed in itself and approximately fol~ows the shape of the insole 4. The shape of insole 4 can be seen in Figure 2. The cross-sectional view of Figure 1 shows a left-hand sealing lip part 31L and a right hand sealing lip part 31R. During the injection molding operation, the sealing lip parts 31L and 31R abut the lasting allowance 19 under the lasting adhesive 3. The injection mold 30 is provided with an entrance opening whose exit mouth is located in the portion between the two sealing lip parts 31L and 31R.
During injection molding, the sealing material 5 is liquefied and injected into the space confined by the sealing lip 31 under a pressure in the range of 3 to 5 atms. In doing so, the liquid sealing material also penetrates into the region between the insole 4 and the loose ends 21 of the lasting allowance. By using this method, the entire space between the insole and the inner contour of the injection mold located between the sealing lip is filled with the sealing material. After the sealing material has hardened, a waterproof closure results wherein the bottom region of the upper 1 is connected to insole 4.
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13~33 This method can also be used in butt-to-butt design. In this case, the sealing lip 31 of the injection mold 30 is positioned such that the butt-to-butt seam is located within the portion of the injection mold that is enclosed by the sealing lip 31.
While the invention has been disclosed herein in connection with certain embodiments and detailed descriptions, it will be clear to one skilled in the art that modifications or variations of such details can be made without deviating from the gist of this invention and such modifications or variations are considered to be within the scope of the claims hereinbelow.
0. , ~ . .. . .
J
1 3~33, ~
Existing technology also includes molding a polyurethane outsole to the shoe region of a butt-to-butt upper. For doing so, it is necessary to have a bipartite injection mold that is applied to the upper from both sides thereof. This injection mold is relatively expensive. Due to the high mold costs, the shoe manufacturers are restricted to very few sole configurations.
Also, it is not possible to achieve shoes of elegant appearance with such molded-on outsoles.
SUMMARY OF THE INVENTION
This invention provides a method for sealing the connecting region between a waterproof shoe upper and the insole region of a shoe, in a water-impermeable manner by means of a layer of liquefiable material that is waterproof in the hardened state. The layer is injection molded onto the connecting region with the aid of an injection mold, characterized in that the injection mold is applied to the bottom sole of the shoe upper, connected to the insole region. The mold has a sealing lip assembly upstanding towards the insole region and extends on both sides of the connecting region to be sealed, so that the layer is injection molded into the portion confined by the sealing lip assembly.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 shows a schematic vertical sectional view of an upper to which an insole is bonded and an injection mold applied to the upper.
Figure 2 shows a schematic view of an upper to which an insole is bonded and which has an injection mold applied thereto.
., .. ,, .. . . , ~ I
1 3 ~` 331 8 DETAILED DESCRIPTION OF THE INVENTION
This invention provides an improved method for procuring a connection between an upper and insole region of a shoe that remains waterproof over a long period of time. Any type of outer sole can be used with this invention.
This invention relates to a method of sealing in a water-impermeable manner, the connecting region between a waterproof shoe upper and the insole region of a shoe by means of a layer of liquefiable material that is waterproof in the hardened state, the layer being injection molded onto the connecting region with the aid of an injection mold, characterized in that the inject;on mold is applied to the bottom sole of the shoe upper, connected to the insole region, the mold having a sealing lip assembly upstanding towards the insole region and extending on both sides of the connecting region to be sealed, and in that the layer is injection molded into the portion confined by the sealing lip assembly.
This method also enables use of a relatively simple injection mold. The injection molding die may be provided with an upstanding sealing lip having an outline that corresponds approximately to the contour of the insole. The mold has great versatility with respect to dimensions of shoes, since the exact line of application of the sealing lip to the upper provided with the insole is not a critical parameter.
Preferably, the contour of the sealing lip extends slightly inward from the outer margin of the upper. It is possible to apply any desired outersole to the layer that has been injection-molded to the upper. The molded layer need not be visible in the final product so that the aesthetic appearance of the shoe need not be impaired by such a layer.
~ ,~
.,.. , . .. ~, 1 3 ``3~1 8 The layer preferably comprises polyurethane which is liquefied for injection molding and is injection molded under a pressure of preferably 3 to 5 atm. This pressure ensures that the liquid material penetrates the region to be sealed between the insole and upper. This also ensures that the connection is waterproof.
The upper, preferably the entire upper, may be lined with a waterproof material that is preferably permeable to water vapor. Materials suitable for this to use as the liner include expanded polytetrafluoroethylene (PTFE), the liner of which is described in U.S. Patent 4,599,810, a polyester membrane, or microporous polyurethane coating.
The present invention is best understood by reference to Figures 1 and 2.
Figure 1 shows a cross-section of an upper 1 attached to an insole 4 by means of a durable cement or adhesive 3. The upper 1 may consist of different materials. Figure 1 shows two possibilities. Figure lb shows an upper consisting of a laminate 7 comprising an outer layer 9, a middle layer 11 of a water-impermeable, vapor permeable membrane as well as an inner layer 13. The laminate 7 may be lined on the inside with a lining 15.
Figure la shows an embodiment of an upper comprising an outer layer 17, such as leather, which is lined with a laminate that serves as a lining and also contains a water-impermeable, vapor-permeable membrane. Extending from the outer layer 17, is a lasting allowance 19. The lasting allowance is the amount of upper material of the shoe that needs to be pulled under in order to bond the upper to the sole. The lasting allowance in Figure la has a loose end portion 21 which is not cemented to the insole 4.
Y' ~ ~.
1 3 '~3~, 8 The embodiment shown in Figure lb has a lining 15, preferably designed to be shorter in the lasting allowance than laminate 7. Only the section of laminate 15 having the lining is cemented to insole 4. The portion of the laminate 7 projecting beyond the lining form the loose portion of the lasting allowance 19.
In Figure la, the outer layer 17 is shorter in the region of the lasting allowance 19 than the laminate layer 7 applied to the outer layer 17. After the upper has been cemented to the insole 4, the front end portion 21 of the laminate 7 remains unconnected with the insole 4.
Figure 1 also shows an injection mold 30 having a sealing lip 31 that is closed in itself and approximately fol~ows the shape of the insole 4. The shape of insole 4 can be seen in Figure 2. The cross-sectional view of Figure 1 shows a left-hand sealing lip part 31L and a right hand sealing lip part 31R. During the injection molding operation, the sealing lip parts 31L and 31R abut the lasting allowance 19 under the lasting adhesive 3. The injection mold 30 is provided with an entrance opening whose exit mouth is located in the portion between the two sealing lip parts 31L and 31R.
During injection molding, the sealing material 5 is liquefied and injected into the space confined by the sealing lip 31 under a pressure in the range of 3 to 5 atms. In doing so, the liquid sealing material also penetrates into the region between the insole 4 and the loose ends 21 of the lasting allowance. By using this method, the entire space between the insole and the inner contour of the injection mold located between the sealing lip is filled with the sealing material. After the sealing material has hardened, a waterproof closure results wherein the bottom region of the upper 1 is connected to insole 4.
,s ,~
~,~ , ~, .
13~33 This method can also be used in butt-to-butt design. In this case, the sealing lip 31 of the injection mold 30 is positioned such that the butt-to-butt seam is located within the portion of the injection mold that is enclosed by the sealing lip 31.
While the invention has been disclosed herein in connection with certain embodiments and detailed descriptions, it will be clear to one skilled in the art that modifications or variations of such details can be made without deviating from the gist of this invention and such modifications or variations are considered to be within the scope of the claims hereinbelow.
0. , ~ . .. . .
Claims (8)
1. A method of sealing in a water-impermeable manner, a connecting region between a waterproof shoe upper having a bottom side and an insole region of a shoe comprising the following steps:
(a) injecting a liquified material onto the connecting region between the bottom side of the shoe upper and insole region by means of an injection mold wherein the injection mold is applied to the bottom side of the shoe upper, said injection mold having a sealing lip assembly upstanding towards the insole region and extending on both sides of the connecting region to be sealed, said sealing lip assembly approximately following the shape of the insole; and (b) forming a waterproof layer in the connecting region by allowing the liquified material to harden, wherein the waterproof layer is limited to an area confined by the sealing lip assembly.
(a) injecting a liquified material onto the connecting region between the bottom side of the shoe upper and insole region by means of an injection mold wherein the injection mold is applied to the bottom side of the shoe upper, said injection mold having a sealing lip assembly upstanding towards the insole region and extending on both sides of the connecting region to be sealed, said sealing lip assembly approximately following the shape of the insole; and (b) forming a waterproof layer in the connecting region by allowing the liquified material to harden, wherein the waterproof layer is limited to an area confined by the sealing lip assembly.
2. A method according to claim 1, characterized in that the layer consists of polyurethane.
3. A method according to claim 1, characterized in that the layer consists of polyvinyl chloride.
4. A method according to claim 1, characterized in that the layer consists of natural rubber.
5. A method according to claim 1 characterized in that the layer consists of synthetic rubber.
6. A method according to claim 1, characterized in that at least a part of the shoe upper consists of waterproof, vapor-permeable material or is lined with such material.
7. A method according to claim 6, characterized in that said waterproof, vapor-permeable material is a film of porous polytetrafluoroethylene; a polyester membrane or a microporous polyurethane coating.
8. A method according to any on of Claims 1 to 7 wherein the waterproof shoe upper has a lasting allowance and a liner edge portion and wherein the lasting allowance is cemented to the shoe sole characterized in that the liner edge portion of the lasting allowance is kept uncemented and that the uncemented portion is positioned within the region confined by the sealing lip assembly so that the liquified material is applied on both sides of the liner edge portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3712901A DE3712901C1 (en) | 1987-04-15 | 1987-04-15 | Process for waterproofing shoes in the sole area |
| DEP3712901.5 | 1987-04-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1333318C true CA1333318C (en) | 1994-12-06 |
Family
ID=6325749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000564088A Expired - Fee Related CA1333318C (en) | 1987-04-15 | 1988-04-14 | Method of sealing shoe in the sole region |
Country Status (13)
| Country | Link |
|---|---|
| EP (1) | EP0286853B2 (en) |
| JP (1) | JPH062081B2 (en) |
| KR (1) | KR880012184A (en) |
| CN (1) | CN88102190A (en) |
| AT (1) | ATE95676T1 (en) |
| CA (1) | CA1333318C (en) |
| DD (1) | DD284590A5 (en) |
| DE (2) | DE3712901C1 (en) |
| HU (1) | HUT57564A (en) |
| PT (1) | PT87217B (en) |
| RO (1) | RO100073B1 (en) |
| TR (1) | TR25076A (en) |
| YU (1) | YU64088A (en) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3840087A1 (en) * | 1988-11-28 | 1990-05-31 | Wagner Lowa Schuhfab | SHOE - KEYWORD: PLASTIC BAND |
| DE4000156C2 (en) * | 1990-01-04 | 1998-07-30 | Gore W L & Ass Gmbh | Process for manufacturing a waterproof shoe and waterproof shoe |
| EP0595941B1 (en) * | 1991-07-12 | 1997-08-27 | W.L. Gore & Associates, Inc. | Method of producing an article of waterproof fottwear |
| DE4138836C5 (en) * | 1991-11-26 | 2004-07-15 | W.L. Gore & Associates Gmbh | Waterproof, breathable footwear |
| DE4311768A1 (en) * | 1993-04-08 | 1994-10-13 | Gore W L & Ass Gmbh | Method of sealing shoes in the sole region |
| DE4429158C2 (en) * | 1994-07-30 | 1998-12-03 | Oskar Welz | Footwear |
| DE4436495A1 (en) * | 1994-10-12 | 1996-04-18 | Gore W L & Ass Gmbh | Process for waterproofing shoes in the sole area |
| DE19738744A1 (en) * | 1997-09-04 | 1999-04-08 | Gore W L & Ass Gmbh | Shoe and method for its manufacture |
| WO2000024282A1 (en) * | 1998-10-28 | 2000-05-04 | W.L. Gore & Associates Gmbh | Footwear having a sealed sole construction and a method for the production thereof |
| JP2002528152A (en) * | 1998-10-28 | 2002-09-03 | ダブリュ．エル．ゴア アンド アソシエーツ，ゲゼルシャフト ミット ベシュレンクテル ハフツング | Shoe with hang-up sealing and method of making the shoe |
| JP2002528151A (en) * | 1998-10-28 | 2002-09-03 | ダブリュ．エル．ゴア アンド アソシエーツ，ゲゼルシャフト ミット ベシュレンクテル ハフツング | Sealed shoes and method of manufacturing sealed shoes |
| US20020053148A1 (en) * | 1998-11-17 | 2002-05-09 | Franz Haimerl | Footwear with last area sealing and method for its production |
| AU3277300A (en) * | 1999-01-29 | 2000-08-18 | W.L. Gore & Associates Gmbh | Footwear with sealed functional layer and method for producing same |
| WO2001012003A1 (en) * | 1999-08-16 | 2001-02-22 | Gore Enterprise Holdings, Inc. | Waterproof breathable footwear with cemented outsoles |
| DE10020738C1 (en) | 2000-04-27 | 2002-01-24 | Gore W L & Ass Gmbh | Footwear with a sealed gusset and process for making it |
| FR2826554B1 (en) * | 2001-06-29 | 2004-01-16 | Salomon Sa | SHOE |
| ITTV20030043A1 (en) * | 2003-03-11 | 2004-09-12 | Jolly Scarpe Spa | PROCEDURE FOR OBTAINING A WATERPROOF AND BREATHABLE FOOTWEAR AND FOOTWEAR SO OBTAINED. |
| CN102342622B (en) * | 2010-07-29 | 2015-07-15 | 阿基里斯株式会社 | Waterproof shoe and waterproof lining of waterproof shoe |
| CN107348617A (en) * | 2017-08-31 | 2017-11-17 | 成都卡美奇鞋业有限公司 | Improve the bonding shoe-making process of sole bonding intensity |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1680553A1 (en) * | 1967-06-16 | 1971-04-29 | Ashtabula Bow Socket Co | Bicycle fork stem |
| GB1228172A (en) * | 1967-06-21 | 1971-04-15 | ||
| US4599810A (en) * | 1981-08-06 | 1986-07-15 | W. L. Gore & Associates | Waterproof shoe construction |
| DE3147202A1 (en) * | 1981-11-27 | 1983-06-01 | W.L.Gore & Co. GmbH, 8011 Putzbrunn | WATER VAPOR PERMEABLE (WELDABLE) FOOTWEAR |
| FR2550065B1 (en) * | 1983-08-01 | 1986-02-07 | Eymery Jean Pierre | PROCESS FOR THE MANUFACTURE OF THIN SOLE SOLE ARTICLES IN PLASTIC MATERIAL DIRECTLY INJECTED ON ROD |
-
1987
- 1987-04-15 DE DE3712901A patent/DE3712901C1/en not_active Expired
-
1988
- 1988-03-15 DE DE88104129T patent/DE3884843D1/en not_active Expired - Lifetime
- 1988-03-15 EP EP88104129A patent/EP0286853B2/en not_active Expired - Lifetime
- 1988-03-15 AT AT88104129T patent/ATE95676T1/en not_active IP Right Cessation
- 1988-03-30 YU YU00640/88A patent/YU64088A/en unknown
- 1988-04-07 RO RO13296988A patent/RO100073B1/en unknown
- 1988-04-12 PT PT87217A patent/PT87217B/en not_active IP Right Cessation
- 1988-04-12 DD DD88314664A patent/DD284590A5/en not_active IP Right Cessation
- 1988-04-13 HU HU881904A patent/HUT57564A/en unknown
- 1988-04-14 JP JP63090436A patent/JPH062081B2/en not_active Expired - Lifetime
- 1988-04-14 KR KR1019880004266A patent/KR880012184A/en not_active Application Discontinuation
- 1988-04-14 CA CA000564088A patent/CA1333318C/en not_active Expired - Fee Related
- 1988-04-15 CN CN198888102190A patent/CN88102190A/en active Pending
- 1988-04-15 TR TR88/0280A patent/TR25076A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPH062081B2 (en) | 1994-01-12 |
| JPS6420803A (en) | 1989-01-24 |
| YU64088A (en) | 1990-06-30 |
| EP0286853A3 (en) | 1990-10-10 |
| CN88102190A (en) | 1988-11-02 |
| KR880012184A (en) | 1988-11-26 |
| DE3884843D1 (en) | 1993-11-18 |
| PT87217A (en) | 1989-05-12 |
| RO100073B1 (en) | 1992-06-01 |
| EP0286853B2 (en) | 1998-07-15 |
| EP0286853B1 (en) | 1993-10-13 |
| ATE95676T1 (en) | 1993-10-15 |
| HUT57564A (en) | 1991-12-30 |
| PT87217B (en) | 1994-09-30 |
| DD284590A5 (en) | 1990-11-21 |
| DE3712901C1 (en) | 1988-08-04 |
| EP0286853A2 (en) | 1988-10-19 |
| TR25076A (en) | 1992-09-23 |
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| Date | Code | Title | Description |
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| MKLA | Lapsed |