US5005873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marking of articles
Assignee: MAZZUCCHELLI 1849 SpA
•
Filing: 1987-04-07
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Granted: 1991-04-09
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Expires: 2007-04-07
Abstract
Abstract An article comprising a substrate having markings which are provided by at least two fluorescent materials which have different excitation spectra in the ultraviolet region of the spectrum and different emission spectra in the visible region of the spectrum. The invention also provides a method of marking an article for identification.
Inventors
- 👤 Michael A. West
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:05
CPC Classifications
B; B42; B42D; B42D25/00; B42D25/30; B42D25/351; B42D25/36; B42D25/378; B42D25/387; B42D25/40; B42D25/405; B42D25/43; B42D25/435; B42D25/45; B42D25/455; G; G06; G06K; G06K19/00; G06K19/06; G06K19/08; G06K19/10; G06K19/14
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
82 words
An article for identification which can be authenticated by sequential irradiation by at least two different wavelengths of ultraviolet radiation comprising a substrate having authentication markings which are provided by at least two fluorescent materials which are excited to fluoresce by said different wavelengths of ultraviolet radiation, and when excited fluoresce with different colors in the visible region of the spectrum, each of said fluorescent materials being incorporated homogeneously in a body of plastics material, the substrate also carrying visual identification data.
Claim 2
Dependent Claim
82 words
An article for identification which can be authenticated by sequential irradiation by at least two different wavelengths of ultraviolet radiation comprising a substrate having authentication markings which are provided by at least two fluorescent materials which are excited to fluoresce by said different wavelengths of ultraviolet radiation, and when excited fluoresce with different colors in the visible region of the spectrum, each of said fluorescent materials being incorporated homogeneously in a body of plastics material, the substrate also carrying visual identification data.
Claim 3
Dependent Claim
35 words
An article according to claim 1 wherein each fluorescent material is incorporated uniformly in a respective body of plastics material which forms a respective fluorescent layer and the fluorescent layers are superposed over each other.
Claim 4
Dependent Claim
14 words
An aritcle according to claim 2 wherein the fluorescent layers are heat bonded together.
Claim 5
Dependent Claim
32 words
An article according to claim 3 wherein the heat bonded surface of one of the fluorescent layers has engraved grooves therein into which extends that fluorescent layer which is heat bonded thereto.
Claim 6
Dependent Claim
44 words
An article according to claim 3 wherein the substrate comprises a base layer and the surface of the base layer which is covered by the superposed fluorescent layers is provided with said visual identification data which can be seen through the superposed fluroescent layers.
Claim 7
Dependent Claim
24 words
An article according to claim 5 wherein the visual identification data is provided by a pattern of a UV absorbing but visibly transparent material.
Claim 8
Dependent Claim
29 words
An article according to claim 5 wherein the base layer is a layer of plastics material and the base layer and the superposed fluorescent layers are heat bonded together.
Claim 9
Dependent Claim
28 words
An article according to claim 3 wherein there are at least two of the fluorescent layers and between two adjacent fluorescent layers is provided said visual identification data.
Claim 10
Dependent Claim
24 words
An article according to claim 8 wherein the visual identification data is provided by a pattern of a UV absorbing but visibly transparent material.
Claim 11
Dependent Claim
15 words
An article according to claim 2 wherein one of the fluorescent layers comprises the substrate.
Claim 12
Dependent Claim
29 words
An article according to claim 10 wherein a surface of the substrate fluorescent layer, over which surface another fluorescent layer is superposed, is provided with said visual identification data.
Claim 13
Dependent Claim
24 words
An article according to claim 11 wherein the visual identification data is provided by a pattern of a UV absorbing but visibly transparent material.
Claim 14
Dependent Claim
27 words
An article according to claim 1 wherein the at least two fluorescent materials are in admixture and are incorporated uniformly in a common body of plastics material.
Claim 15
Dependent Claim
12 words
An article according to claim 13 wherein the body constitutes the substrate.
Claim 16
Dependent Claim
60 words
An article according to claim 1 wherein one of the fluorescent materials is incorporated uniformly in a layer of plastics material, an exposed surface of the layer of plastics material is engraved with grooves representing said visual identification data, and a second one of the fluorescent materials is incorporated uniformly in a body of plastics material which fills the grooves.
Claim 17
Independent Claim
69 words
A method of marking an article for identification, the method comprising providing the article with at least two fluorescent materials which are excited to fluoresce by at least two different wavelengths of ultraviolet radiation, and when excited, fluoresce with different colors in the visible region of the spectrum, each fluorescent material being homogeneously incorporated in a body of plastics material, and also providing the article with visual identification data.
Claim 18
Independent Claim
69 words
A method of marking an article for identification, the method comprising providing the article with at least two fluorescent materials which are excited to fluoresce by at least two different wavelengths of ultraviolet radiation, and when excited, fluoresce with different colors in the visible region of the spectrum, each fluorescent material being homogeneously incorporated in a body of plastics material, and also providing the article with visual identification data.
Claim 19
Dependent Claim
35 words
A method according to claim 16 wherein each fluorescent material is incorporated uniformly in a respective body of plastics material which forms a respective fluorescent layer and the fluorescent layers are superposed over each other.
Claim 20
Dependent Claim
14 words
A method according to claim 17 wherein the fluorescent layers are heat bonded together.
Claim 21
Dependent Claim
42 words
A method according to claim 18 wherein a surface of one of the fluorescent layers to be heat bonded is engraved with grooves whereby when another of the fluorescent layers is heat bonded thereto that other fluorescent layer extends into the grooves.
Claim 22
Dependent Claim
43 words
A method according to claim 18 wherein the substrate comprises a base layer and the surface of the base layer which is covered by the superposed fluorescent layers is provided with said visual identification data which can be seen through the superposed layers.
Claim 23
Dependent Claim
24 words
A method according to claim 20 wherein the visual identification data is provided by a pattern of a UV absorbing but visibly transparent material.
Claim 24
Dependent Claim
29 words
A method according to claim 20 wherein the base layer is a layer of plastics material and the base layer and the superposed fluorescent layers are heat bonded together.
Claim 25
Dependent Claim
28 words
A method according to claim 17, wherein there are at least two of the fluorescent layers and between two adjacent fluorescent layers is provided said visual identification data.
Claim 26
Dependent Claim
24 words
A method according to claim 23 wherein the visual identification data is provided by a pattern of a UV absorbing but visibly transparent material.
Claim 27
Dependent Claim
15 words
A method according to claim 17 wherein one of the fluorescent layers comprises the substrate.
Claim 28
Dependent Claim
28 words
A method according to claim 25 wherein a surface of the substrate fluorescent layer, over which surface another fluorescent layer is superposed, is provided with visual identification data.
Claim 29
Dependent Claim
24 words
A method according to claim 26 wherein the visual identification data is provided by a pattern of a UV absorbing but visibly transparent material.
Claim 30
Dependent Claim
27 words
A method according to claim 16 wherein the at least two fluorescent materials are mixed together and are incorporated uniformly in a common body of plastics material.
Claim 31
Dependent Claim
12 words
A method according to claim 28 wherein the body constitutes the substrate.
Claim 32
Dependent Claim
59 words
A method according to claim 16 wherein one of the fluorescent materials is incorporated uniformly in a layer of plastics material, an exposed surface of the layer of plastics material is engraved with grooves representing visual identification data, and a second one of the fluorescent materials is incorporated uniformly in a body of plastics material which fills the grooves.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-04-08 | 1994-10-08 | 1995-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-08 | 1998-10-08 | 1999-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-08 | 2002-10-08 | 2003-04-09 | $7700.00 | Window Closed / Lapsed |