CA2077677C - Method of selecting personal compatible colors - Google Patents
Method of selecting personal compatible colorsInfo
- Publication number
- CA2077677C CA2077677C CA002077677A CA2077677A CA2077677C CA 2077677 C CA2077677 C CA 2077677C CA 002077677 A CA002077677 A CA 002077677A CA 2077677 A CA2077677 A CA 2077677A CA 2077677 C CA2077677 C CA 2077677C
- Authority
- CA
- Canada
- Prior art keywords
- color
- skin
- colors
- categories
- compatibility
- 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
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D44/00—Other cosmetic or toiletry articles, e.g. for hairdressers' rooms
- A45D44/005—Other cosmetic or toiletry articles, e.g. for hairdressers' rooms for selecting or displaying personal cosmetic colours or hairstyle
Landscapes
- Spectrometry And Color Measurement (AREA)
- Color Image Communication Systems (AREA)
- Facsimile Image Signal Circuits (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
- Punching Or Piercing (AREA)
Abstract
A method for the selection of proper colors (12) for individual wearers depending upon the underlying color of the skin of the wearer and the intensity therefor. The method includes the steps of providing a group of classifications of color temperature, preferably four in number, and using a spectrophotometer, or a draping technique of material to determine the color temperatures of the skin of the user, and a determination of the classification in which those color temperatures fall is made. A predetermined group of colors (12) are classified within each category, so that upon determination of the proper classification for an individual user, reference may be made to the proper predetermined group of colors (12) as a guide for appropriate apparel, cosmetic makeup, or hair tint selection.
Description
2~77677 Descri~tion Method For Selectinq Personal Compatible Colors Backqround of the Invention This invention relates generally to the field of individual grooming, and more particularly to an improved method for selecting prope. coiors of individ-ual articles of apparel, cosmetic make up or hair tint, the method being suitable for use by persons having only ordinary skills.
It has long been appreciated that garments, cos- -~
metic make up or hair tint, of particular colors are more flattering to a wearer than similar items of other colors. Many persons, particularly women, possess the -ability almost instinctively to make a selection, with-out appreciating the basis which enables them to make a subjective consideration and decision. Some persons are aware that the proper selection is directly related to the complexion of the wearer, but have not appre-ciated the actual relationship which exists. As a result, it is customary to try garments, cosmetic make up or hair tint on a trial basis, and observing the appearance in a mirror, or consulting with a salesperson.
, .
Brief Summary of the Invention I have found that the process of color selection can be materially simplified by the provision of stan-dard categories, relatively few in number, of skin ;
colors into which both Caucasian and American black .
persons may be classified, depending upon the under-lying or subcutaneous skin color. Practically all such normal persons have an underlying tone of either blue or yellow-red in varying degrees of intensity, which results in the presence of a readily determined color temperature which may be measured by a draping :.
W~91/14158 PCT/US90/01284 2077 677 -2- ~
technique done visually or by a color temperature measuring device or spectrophotometer. The output of a color temperature measuring device is a measure of the yellow to blue content of the light it receives. Where such temperature is to be measured to relatively large tolerances, it may be accomplished by using hand held color temperature meters. The result with a spectro- ~i photometer will be a plottable curve covering the ' visual spectrum, which will show strength o' va-ying degrees over the spectrum. This curve is matched with curves which are obtained by similar measurements of colors on fabrics or paper samples, which will exhibit similar blue and yellow red reflective properties.
Practically all of the colors in the spectrum are available in each of the categories, for selection, provided that the particular color exhibits a curve which is similar to that obtained by measuring the skin pigmentation of the individual user.
~rief Description of the Drawinqs ;
Fig. l is a diagrammatic illustration of a color chart collecting together colors compatible with one category of skin color; and Fig. 2 is a perspective view of an assemblage of ~;
fabric samples having color~ compatible with one category of skin color.
Detailed Descri~tion of the Disclosed Method In accordance with the invention, a fist step consists in the establishment of a number of skin color categories. Each of the colors in each category exhibits a substantially similar plotted curve extend-ing over the visible spectrum, obtained by spectroanalysis.
I have found that a compilation of four sets of basic color ranges in material fabric can be made that is most compatible with the four ranges of basic skin pigment undertones into which the great bulk of the ...... ... ~ , ~, . . .
: . .. . , . , - .,:, :. . . . . .
WOgl/14158 PCT/US90/012~
'' . 20776'77 population may be classified. These skin and fabric color categories are as follows.
Classification A includes almost all of the colors of the visible spectrum. They have the highest inten-sity (50 to 100%) per spectrum analysis of the shorterwave lengths of the skin color spectrum, that ls to say, the "blue base" tones. Black is also in this classification.
Classi-lcation B also includes most all colors, with the exclusion of black. They have ~he next highest or one to fifty percent intensity per spectrum analysis of the shorter wave lengths of the skin color spectrum, or the "blue based" tones.
Classification C also includes most of the colors, and these have a one to fifty percent intensity of the yellow red tones, or the longer wave lengths of the skin color spectrum, per spectrum analysis.
Classification D, again, includes most of the colors, and they have the highest intensity of the yellow red tones, fifty to one hundred percent, or the longest wave lengths of the skin color spectrum, per spectrum analysis. -As both the skin color undertones of an ir.dividual person and the labeling of the color of a dyed piece of 25 material can be classified into one of the above four ;
categories, it is possible to match the skin of the user to the material and determine the most compatible colors in a given material a person may wear, or use on their person. Once the classification of the individ-ual user is established, it is possible to provide that person with a simplified color chart l0, as shown for example in Fig. 1, and the selection of a garment or articles to be worn may be matched as closely as possible from the standpoint of color to a color 12 on the chart.
As a next step in the disclosed method, a series of color charts 10 are prepared in which suitable colors 12 for each category are assembled. This might ~, ::: , ~ . . . - . - . , , . -': ' . ' '. . '. ', ' '. .'. . .'.', '~ ' ' , . ! ' , ,, ~
2 07 7 6~ 7 ~4~ ~
be done by displaying tne colors on a single surface, :
or preferably individual swatches of fabric 16 exhibit-ing the proper colors can be assembled in a convenient package 20, as shown for example in Fig. 2.
Individual testing of a subject is conducted using a draping technique of material around the shoulders, near the face, the materials being of the full color spectrum, but being either blue based or red yellow based and observed visually as to compatibility to the skin pigment of the subject, or by use of a spectro-photometer, or by means of a specialized color tempera- ;
ture meter calibrated to indicate broadly in which of :;
the four categories A through D of the skin of the subject is properly classified. Once this reading has been made, the subject is supplied with the appropriate color chart, and selection of a garment, cosmetic make ,-up or hair tint can be guided by comparing the apparent color thereof with colors 12 on the chart l0. While in most cases, the user will want to try the garment, make up or hair tint, as a practical matter, the chart is useful in facilitating an initial rejection of an item based upon improper color alone.
It will be understood by those skilled in the art that it is possible to provide a greater number of cate~ories with correspondingly greater precision rela-tive to the availability of colors. I have found, - however, for practical purposes, the four category system is entirely adequate, and greater precision can be used in such case, with regard to the selection of colors to be included in the color chart relating to a particular category, thus facilitating the testing of an individual user which may be conducted by those who are relatively unskilled in the physicai sciences.
I wish it to be understood that I do not consider the invention limited to the precise details of struc-ture shown and set forth in this specification, for obvious modifications will occur to those skilled in the art to which th~ invention pertains.
SUBSTITUTE SHEET
.. , . ', . ~. ;. .. .; . ... ..... . .
It has long been appreciated that garments, cos- -~
metic make up or hair tint, of particular colors are more flattering to a wearer than similar items of other colors. Many persons, particularly women, possess the -ability almost instinctively to make a selection, with-out appreciating the basis which enables them to make a subjective consideration and decision. Some persons are aware that the proper selection is directly related to the complexion of the wearer, but have not appre-ciated the actual relationship which exists. As a result, it is customary to try garments, cosmetic make up or hair tint on a trial basis, and observing the appearance in a mirror, or consulting with a salesperson.
, .
Brief Summary of the Invention I have found that the process of color selection can be materially simplified by the provision of stan-dard categories, relatively few in number, of skin ;
colors into which both Caucasian and American black .
persons may be classified, depending upon the under-lying or subcutaneous skin color. Practically all such normal persons have an underlying tone of either blue or yellow-red in varying degrees of intensity, which results in the presence of a readily determined color temperature which may be measured by a draping :.
W~91/14158 PCT/US90/01284 2077 677 -2- ~
technique done visually or by a color temperature measuring device or spectrophotometer. The output of a color temperature measuring device is a measure of the yellow to blue content of the light it receives. Where such temperature is to be measured to relatively large tolerances, it may be accomplished by using hand held color temperature meters. The result with a spectro- ~i photometer will be a plottable curve covering the ' visual spectrum, which will show strength o' va-ying degrees over the spectrum. This curve is matched with curves which are obtained by similar measurements of colors on fabrics or paper samples, which will exhibit similar blue and yellow red reflective properties.
Practically all of the colors in the spectrum are available in each of the categories, for selection, provided that the particular color exhibits a curve which is similar to that obtained by measuring the skin pigmentation of the individual user.
~rief Description of the Drawinqs ;
Fig. l is a diagrammatic illustration of a color chart collecting together colors compatible with one category of skin color; and Fig. 2 is a perspective view of an assemblage of ~;
fabric samples having color~ compatible with one category of skin color.
Detailed Descri~tion of the Disclosed Method In accordance with the invention, a fist step consists in the establishment of a number of skin color categories. Each of the colors in each category exhibits a substantially similar plotted curve extend-ing over the visible spectrum, obtained by spectroanalysis.
I have found that a compilation of four sets of basic color ranges in material fabric can be made that is most compatible with the four ranges of basic skin pigment undertones into which the great bulk of the ...... ... ~ , ~, . . .
: . .. . , . , - .,:, :. . . . . .
WOgl/14158 PCT/US90/012~
'' . 20776'77 population may be classified. These skin and fabric color categories are as follows.
Classification A includes almost all of the colors of the visible spectrum. They have the highest inten-sity (50 to 100%) per spectrum analysis of the shorterwave lengths of the skin color spectrum, that ls to say, the "blue base" tones. Black is also in this classification.
Classi-lcation B also includes most all colors, with the exclusion of black. They have ~he next highest or one to fifty percent intensity per spectrum analysis of the shorter wave lengths of the skin color spectrum, or the "blue based" tones.
Classification C also includes most of the colors, and these have a one to fifty percent intensity of the yellow red tones, or the longer wave lengths of the skin color spectrum, per spectrum analysis.
Classification D, again, includes most of the colors, and they have the highest intensity of the yellow red tones, fifty to one hundred percent, or the longest wave lengths of the skin color spectrum, per spectrum analysis. -As both the skin color undertones of an ir.dividual person and the labeling of the color of a dyed piece of 25 material can be classified into one of the above four ;
categories, it is possible to match the skin of the user to the material and determine the most compatible colors in a given material a person may wear, or use on their person. Once the classification of the individ-ual user is established, it is possible to provide that person with a simplified color chart l0, as shown for example in Fig. 1, and the selection of a garment or articles to be worn may be matched as closely as possible from the standpoint of color to a color 12 on the chart.
As a next step in the disclosed method, a series of color charts 10 are prepared in which suitable colors 12 for each category are assembled. This might ~, ::: , ~ . . . - . - . , , . -': ' . ' '. . '. ', ' '. .'. . .'.', '~ ' ' , . ! ' , ,, ~
2 07 7 6~ 7 ~4~ ~
be done by displaying tne colors on a single surface, :
or preferably individual swatches of fabric 16 exhibit-ing the proper colors can be assembled in a convenient package 20, as shown for example in Fig. 2.
Individual testing of a subject is conducted using a draping technique of material around the shoulders, near the face, the materials being of the full color spectrum, but being either blue based or red yellow based and observed visually as to compatibility to the skin pigment of the subject, or by use of a spectro-photometer, or by means of a specialized color tempera- ;
ture meter calibrated to indicate broadly in which of :;
the four categories A through D of the skin of the subject is properly classified. Once this reading has been made, the subject is supplied with the appropriate color chart, and selection of a garment, cosmetic make ,-up or hair tint can be guided by comparing the apparent color thereof with colors 12 on the chart l0. While in most cases, the user will want to try the garment, make up or hair tint, as a practical matter, the chart is useful in facilitating an initial rejection of an item based upon improper color alone.
It will be understood by those skilled in the art that it is possible to provide a greater number of cate~ories with correspondingly greater precision rela-tive to the availability of colors. I have found, - however, for practical purposes, the four category system is entirely adequate, and greater precision can be used in such case, with regard to the selection of colors to be included in the color chart relating to a particular category, thus facilitating the testing of an individual user which may be conducted by those who are relatively unskilled in the physicai sciences.
I wish it to be understood that I do not consider the invention limited to the precise details of struc-ture shown and set forth in this specification, for obvious modifications will occur to those skilled in the art to which th~ invention pertains.
SUBSTITUTE SHEET
.. , . ', . ~. ;. .. .; . ... ..... . .
Claims (14)
1. A method of determining color compatibility of an individual person with non-skin matter, comprising the steps of:
establishing color categories exclusively on the basis of skin color content in the bluer and yellower regions of the spectrum, determining the color compatibility of the non-skin matters of any color with the skin colors in the categories, measuring by instrument the content in an individual person's skin coloration of color content from said bluer and yellower regions of the spectrum, and assigning the individual to one of the established color categories exclusively on the basis of the skin color content thus measured.
establishing color categories exclusively on the basis of skin color content in the bluer and yellower regions of the spectrum, determining the color compatibility of the non-skin matters of any color with the skin colors in the categories, measuring by instrument the content in an individual person's skin coloration of color content from said bluer and yellower regions of the spectrum, and assigning the individual to one of the established color categories exclusively on the basis of the skin color content thus measured.
2. A method of assigning a color category to non-skin matter of any color, comprising the steps of:
(a) providing a plurality of color categories based exclusively upon measurement by instrument of the skin color content in bluer and yellower regions of the spectrum, for assignment of all colors of non-skin matter to these color categories, (b) identifying color compatibility of at least one color of the non-skin matter with one of the color categories, and (c) assigning one of a plurality of color categories to the non-skin matter based on the identified color compatibility.
(a) providing a plurality of color categories based exclusively upon measurement by instrument of the skin color content in bluer and yellower regions of the spectrum, for assignment of all colors of non-skin matter to these color categories, (b) identifying color compatibility of at least one color of the non-skin matter with one of the color categories, and (c) assigning one of a plurality of color categories to the non-skin matter based on the identified color compatibility.
3. A method according to claim 2, including providing a plurality of colors compatible with the same color category in a color chart.
4. A method according to claim 2, including collecting together in an assemblage a plurality of samples of non-skin matter compatible with the same color category.
5. A color chart made by the method according to claim 3.
6. An assemblage made by the method according to claim 4.
7. A method of making a color chart of the colors of non-skin matter of any color for compatibility with skin colors, comprising the steps of:
(a) determining a classification for colors of non-skin matter for compatibility with skin color classifications, such skin color classifications being based exclusively upon measurement by instrument of skin color content in the bluer and yellower spectral regions, and (b) assembling representations of the colors similarly classified to form a chart of colors of at least that classification as an indication of appropriate color selections for individuals having a compatible skin color classification.
(a) determining a classification for colors of non-skin matter for compatibility with skin color classifications, such skin color classifications being based exclusively upon measurement by instrument of skin color content in the bluer and yellower spectral regions, and (b) assembling representations of the colors similarly classified to form a chart of colors of at least that classification as an indication of appropriate color selections for individuals having a compatible skin color classification.
8. A color chart comprising representations of colors of non-skin products, wherein said representations of colors are assembled together and are of colors compatible with a skin color classification category, said skin color classification category being based exclusively upon measurement by instrument of skin color content in the bluer and yellower spectral regions.
9. A method according to claim 1 or 2, wherein the non-skin matter is selected from apparel, cosmetics and hair tint.
10. A color chart according to claim 8, wherein the non-skin products are selected from apparel, cosmetics and hair tint.
11. A method according to claim 1 or 2, further comprising the step of establishing color compatibility categories of non-skin matter and skin colors by determining the color compatibility of said non-skin matter with colors of the skin colors in the color categories.
12. A method according to claim 11, including providing the color compatibility categories in a color chart or an assemblage.
13. A color chart made by the method according to claim 12.
14. An assemblage made by the method according to claim 12.
Priority Applications (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002077677A CA2077677C (en) | 1990-03-16 | 1990-03-16 | Method of selecting personal compatible colors |
| JP90505460A JPH05506710A (en) | 1990-03-16 | 1990-03-16 | How to choose personal harmonious colors |
| AU53481/90A AU652339B2 (en) | 1990-03-16 | 1990-03-16 | Method for selecting personal compatible colors |
| KR1019920702229A KR0169744B1 (en) | 1990-03-16 | 1990-03-16 | Method for selecting personal compatible colors |
| AT90302861T ATE116819T1 (en) | 1990-03-16 | 1990-03-16 | METHOD FOR SELECTING COLORS TO AGREE WITH A PERSON. |
| EP90302861A EP0446512B1 (en) | 1990-03-16 | 1990-03-16 | Method for selecting personal compatible colors |
| DE69016001T DE69016001T2 (en) | 1990-03-16 | 1990-03-16 | Method of selecting colors to be compatible with a person. |
| BR909008006A BR9008006A (en) | 1990-03-16 | 1990-03-16 | METHOD FOR SELECTING PERSONAL COMPATIBLE COLORS |
| PCT/US1990/001284 WO1991014158A1 (en) | 1990-03-16 | 1990-03-16 | Method for selecting personal compatible colors |
| ES90302861T ES2069000T3 (en) | 1990-03-16 | 1990-03-16 | METHOD TO SELECT COMPATIBLE COLORS FOR A PERSON. |
| HK98105580A HK1006520A1 (en) | 1990-03-16 | 1998-06-17 | Method for selecting personal compatible colors |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002077677A CA2077677C (en) | 1990-03-16 | 1990-03-16 | Method of selecting personal compatible colors |
| EP90302861A EP0446512B1 (en) | 1990-03-16 | 1990-03-16 | Method for selecting personal compatible colors |
| PCT/US1990/001284 WO1991014158A1 (en) | 1990-03-16 | 1990-03-16 | Method for selecting personal compatible colors |
| HK98105580A HK1006520A1 (en) | 1990-03-16 | 1998-06-17 | Method for selecting personal compatible colors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2077677A1 CA2077677A1 (en) | 1991-09-17 |
| CA2077677C true CA2077677C (en) | 1998-08-18 |
Family
ID=37309325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002077677A Expired - Fee Related CA2077677C (en) | 1990-03-16 | 1990-03-16 | Method of selecting personal compatible colors |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP0446512B1 (en) |
| JP (1) | JPH05506710A (en) |
| AT (1) | ATE116819T1 (en) |
| AU (1) | AU652339B2 (en) |
| BR (1) | BR9008006A (en) |
| CA (1) | CA2077677C (en) |
| DE (1) | DE69016001T2 (en) |
| ES (1) | ES2069000T3 (en) |
| HK (1) | HK1006520A1 (en) |
| WO (1) | WO1991014158A1 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5311293A (en) * | 1983-07-18 | 1994-05-10 | Chromatics Color Sciences International, Inc. | Method and instrument for selecting personal compatible colors |
| CA2400748C (en) | 2000-03-31 | 2009-10-20 | Imx Labs, Inc. | Nail polish color selection system and method |
| US6707929B2 (en) | 2000-05-12 | 2004-03-16 | The Procter & Gamble Company | Method for analyzing hair and predicting achievable hair dyeing ending colors |
| US6516245B1 (en) | 2000-05-31 | 2003-02-04 | The Procter & Gamble Company | Method for providing personalized cosmetics |
| US6412658B1 (en) | 2001-06-01 | 2002-07-02 | Imx Labs, Inc. | Point-of-sale body powder dispensing system |
| US8636173B2 (en) | 2001-06-01 | 2014-01-28 | Cosmetic Technologies, L.L.C. | Point-of-sale body powder dispensing system |
| US6672341B2 (en) | 2001-09-24 | 2004-01-06 | Imx Labs, Inc. | Apparatus and method for custom cosmetic dispensing |
| US8573263B2 (en) | 2001-09-24 | 2013-11-05 | Cosmetic Technologies, Llc | Apparatus and method for custom cosmetic dispensing |
| US8017137B2 (en) | 2004-07-19 | 2011-09-13 | Bartholomew Julie R | Customized retail point of sale dispensing methods |
| US7624769B2 (en) | 2004-11-08 | 2009-12-01 | Cosmetic Technologies, L.L.C. | Automated customized cosmetic dispenser |
| EP1862089A1 (en) | 2006-06-01 | 2007-12-05 | Carlo Guidi | Method for selecting a harmonious hair colour suitable for an individual |
| US8988686B2 (en) * | 2011-09-06 | 2015-03-24 | The Procter & Gamble Company | Systems, devices, and methods for providing products and consultations |
| EP3935997A1 (en) | 2015-06-08 | 2022-01-12 | Cosmetic Technologies, LLC | Automated delivery system of a cosmetic sample |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2221774A (en) * | 1939-09-21 | 1940-11-19 | Bowser Bernice | Color chart |
| FR1347400A (en) * | 1963-01-22 | 1963-12-27 | Color Active S A | Device for determining the colors of clothes which are suitable for the color of certain peculiarities of the person who wishes to wear these clothes |
| DE2726606A1 (en) * | 1977-06-13 | 1978-12-21 | Max Planck Gesellschaft | MEDICAL SPECTRAL PHOTOMETER |
| US4561850A (en) * | 1983-11-14 | 1985-12-31 | Fabbri Vittorio E | Color coordinator device |
| NL8401665A (en) * | 1984-05-24 | 1985-12-16 | Hsr | Optical device for measuring skin reflectivity - uses photoelectric head to compare different areas of skin surface |
| US4681546A (en) * | 1984-07-20 | 1987-07-21 | Charlavan Hart | Personal color analysis method |
| FR2587181B1 (en) * | 1985-09-16 | 1987-12-18 | Bourdier Jean Claude | MAKEUP METHOD AND DEVICE |
-
1990
- 1990-03-16 DE DE69016001T patent/DE69016001T2/en not_active Expired - Fee Related
- 1990-03-16 ES ES90302861T patent/ES2069000T3/en not_active Expired - Lifetime
- 1990-03-16 WO PCT/US1990/001284 patent/WO1991014158A1/en active Application Filing
- 1990-03-16 JP JP90505460A patent/JPH05506710A/en active Pending
- 1990-03-16 AT AT90302861T patent/ATE116819T1/en not_active IP Right Cessation
- 1990-03-16 BR BR909008006A patent/BR9008006A/en not_active IP Right Cessation
- 1990-03-16 EP EP90302861A patent/EP0446512B1/en not_active Expired - Lifetime
- 1990-03-16 CA CA002077677A patent/CA2077677C/en not_active Expired - Fee Related
- 1990-03-16 AU AU53481/90A patent/AU652339B2/en not_active Ceased
-
1998
- 1998-06-17 HK HK98105580A patent/HK1006520A1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| WO1991014158A1 (en) | 1991-09-19 |
| BR9008006A (en) | 1992-12-01 |
| AU652339B2 (en) | 1994-08-25 |
| ATE116819T1 (en) | 1995-01-15 |
| ES2069000T3 (en) | 1995-05-01 |
| AU5348190A (en) | 1991-10-10 |
| DE69016001T2 (en) | 1995-08-24 |
| DE69016001D1 (en) | 1995-02-23 |
| HK1006520A1 (en) | 1999-03-05 |
| JPH05506710A (en) | 1993-09-30 |
| EP0446512A1 (en) | 1991-09-18 |
| EP0446512B1 (en) | 1995-01-11 |
| CA2077677A1 (en) | 1991-09-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |