Patent US4591707A successfully refreshed from Google Patents.
US4591707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printed security with hallmarks
Assignee: GAO GESSELLSCHAFT fur AUTOMATION und ORGANISATION MBH
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Filing: 1984-08-23
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Granted: 1986-05-27
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Expires: 2004-08-23
Abstract
Abstract This invention relates to a security paper with a hallmark in the form of a coating applied by vacuum deposition techniques to the surface of a paper substrate. The coating is very thin and almost invisible to the naked eye even as a metal layer, although permitting accurate automatic or machine examination for verification purposes. the absorption of the hallmarks in a certain range of the wavelength of the spectrum, the exiting spcetrum of luminescence, the photoconductivity and/or the electrical conductivity of the hallmarks are characteristics used during the automatic examination of the authenticity of the security paper.
Inventors
- 👤 Gerhard Stenzel
- 👤 Wittich Kaule
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:10
CPC Classifications
B; B41; B41M; B41M3/00; B41M3/14; B42; B42D; B42D25/00; B42D25/20; B42D25/29; D; D21; D21H; D21H21/00; D21H21/14; D21H21/40; D21H21/44; D21H21/48; G; G07; G07D; G07D7/00; G07D7/003; Y; Y10; Y10S; Y10S283/00; Y10S283/904
Claims Analysis
Total Claims: 45
Claim 1
Independent Claim
146 words
In a security paper such as a bank note, the combination comprising a single-layer, sheet-like paper substrate; a substantially invisible hallmark in the form of a coating for providing verification of the authenticity of the security paper, said coating being disposed on an outer surface of said security paper in a discontinuous manner whereby coated and uncoated areas are alternately present on such surface; the hallmark coating being formed of a substance having a measurable physical property selected from the group consisting of fluorescence, photoconductivity and UV absorbency; said measurable physical property providing an identifying measurement for such substance; said hallmark coating being applied to said substrate outer surface by a deposition technique such as evaporation or cathode sputtering so as to provide a substance-identifying measurement indicative of said hallmark coating in the pure state free of any measurement-altering adulterant such as binders, overlying films, etc.
Claim 2
Dependent Claim
146 words
In a security paper such as a bank note, the combination comprising a single-layer, sheet-like paper substrate; a substantially invisible hallmark in the form of a coating for providing verification of the authenticity of the security paper, said coating being disposed on an outer surface of said security paper in a discontinuous manner whereby coated and uncoated areas are alternately present on such surface; the hallmark coating being formed of a substance having a measurable physical property selected from the group consisting of fluorescence, photoconductivity and UV absorbency; said measurable physical property providing an identifying measurement for such substance; said hallmark coating being applied to said substrate outer surface by a deposition technique such as evaporation or cathode sputtering so as to provide a substance-identifying measurement indicative of said hallmark coating in the pure state free of any measurement-altering adulterant such as binders, overlying films, etc.
Claim 3
Dependent Claim
25 words
A security paper according to claim 1, wherein the coating is a member selected from the group consisting of metals, metal compounds and mixtures thereof.
Claim 4
Dependent Claim
17 words
A security paper according to claim 1 or 2 wherein the coating is applied by cathode sputtering.
Claim 5
Dependent Claim
24 words
A security paper according to one of the claim 1, wherein the hallmark substance is applied in the form of stripes, patterns or figures.
Claim 6
Dependent Claim
16 words
A security paper according to one of the claim 1, wherein the coating has fluorescent properties.
Claim 7
Dependent Claim
30 words
A security paper according to claim 5, wherein the fluorescent emission of the coating can be excited by light with wavelength less than 400 nm, preferably less than 300 nm.
Claim 8
Dependent Claim
16 words
A security paper according to one of the claim 1, wherein the coating has photoconductive properties.
Claim 9
Dependent Claim
16 words
A security according to claim 7, wherein the coating consists of zinc sulfide doped with copper.
Claim 10
Dependent Claim
17 words
A security paper according to claim 5, wherein the coating consists of yttrium oxide doped with europium.
Claim 11
Dependent Claim
13 words
A security paper according to claim 1, wherein the coating has ultraviolet-absorbing properties.
Claim 12
Dependent Claim
37 words
A security paper according to claim 10, wherein the coating and the paper substrate are matched in such a way that the absorption edge of the coating is still in the transmission range of the paper substrate.
Claim 13
Dependent Claim
14 words
A security paper according to claim 11, wherein the coating consists of zinc oxide.
Claim 14
Dependent Claim
14 words
A security paper according to claim 1, wherein the coating has electrically conducting properties.
Claim 15
Dependent Claim
14 words
A security paper according to claim 13, wherein the coating consists of stannic oxide.
Claim 16
Dependent Claim
127 words
In a security paper such as a bank note, the combination comprising single-layer, sheet-like paper substrate; a hallmark in the form of a coating for providing verification of the authenticity of the security paper; said coating being disposed on an outer surface of said security paper in a discontinuous manner whereby coated and uncoated areas are alternately present on such surface; the hallmark coating being formed of a substance having electrically conducting properties providing an identifying measurement for such substance; said hallmark coating being applied to said substrate outer surface by a deposition technique such as evaporation or cathode sputtering so as to provide a substance-identifying measurement indicative of said hallmark coating in the pure state free of any measurement-altering adulterant such as binders, overlying film, etc.
Claim 17
Dependent Claim
127 words
In a security paper such as a bank note, the combination comprising single-layer, sheet-like paper substrate; a hallmark in the form of a coating for providing verification of the authenticity of the security paper; said coating being disposed on an outer surface of said security paper in a discontinuous manner whereby coated and uncoated areas are alternately present on such surface; the hallmark coating being formed of a substance having electrically conducting properties providing an identifying measurement for such substance; said hallmark coating being applied to said substrate outer surface by a deposition technique such as evaporation or cathode sputtering so as to provide a substance-identifying measurement indicative of said hallmark coating in the pure state free of any measurement-altering adulterant such as binders, overlying film, etc.
Claim 18
Dependent Claim
17 words
A security paper according to claim 15, wherein the coating is substantially invisible to the naked eye.
Claim 19
Dependent Claim
122 words
In a security paper such as a bank note, the combination comprising a single-layer, sheet-like paper substrate; a hallmark in the form of a coating for providing verification of the authenticity of the security paper, said coating being disposed on an outer surface of said security paper in a discontinuous manner whereby coated and uncoated areas are alternately present on such surface; the hallmark coating being formed of a substance having a measurable physical property providing an identifying measurement for such substance; said hallmark coating being applied to said substrate outer surface by cathode sputtering so as to provide a substance-identifying measurement indicative of said hallmark coating in the pure state free of any measurement-altering adulterant such as binders, overlying films, etc.
Claim 20
Dependent Claim
122 words
In a security paper such as a bank note, the combination comprising a single-layer, sheet-like paper substrate; a hallmark in the form of a coating for providing verification of the authenticity of the security paper, said coating being disposed on an outer surface of said security paper in a discontinuous manner whereby coated and uncoated areas are alternately present on such surface; the hallmark coating being formed of a substance having a measurable physical property providing an identifying measurement for such substance; said hallmark coating being applied to said substrate outer surface by cathode sputtering so as to provide a substance-identifying measurement indicative of said hallmark coating in the pure state free of any measurement-altering adulterant such as binders, overlying films, etc.
Claim 21
Dependent Claim
140 words
In a security paper such as a bank note, the combination comprising a single-layer, sheet-like paper substrate; a hallmark in the form of a coating for providing verification of the authenticity of the security paper; said coating being disposed on an outer surface of said security paper in a discontinuous manner whereby coated and uncoated areas are alternately present on such surface; the hallmark coating being formed of a fluorescing substance which emits light in a certain spectral range when exposed to light of a different spectral range; the fluorescence of said substance providing an identifying measurement for such substance; said hallmark coating being applied to said substrate outer surface by cathode sputtering so as to provide a substance-identifying measurement indicative of said hallmark coating in the pure state free of any measurement-altering adulterant such as binders, overlying films, etc.
Claim 22
Dependent Claim
140 words
In a security paper such as a bank note, the combination comprising a single-layer, sheet-like paper substrate; a hallmark in the form of a coating for providing verification of the authenticity of the security paper; said coating being disposed on an outer surface of said security paper in a discontinuous manner whereby coated and uncoated areas are alternately present on such surface; the hallmark coating being formed of a fluorescing substance which emits light in a certain spectral range when exposed to light of a different spectral range; the fluorescence of said substance providing an identifying measurement for such substance; said hallmark coating being applied to said substrate outer surface by cathode sputtering so as to provide a substance-identifying measurement indicative of said hallmark coating in the pure state free of any measurement-altering adulterant such as binders, overlying films, etc.
Claim 23
Dependent Claim
137 words
In a security paper such as a bank note, the combination comprising a single-layer, sheet-like paper substrate; a hallmark in the form of a coating for providing verification of the authenticity of the security paper; said coating being disposed on an outer surface of said security paper in a discontinuous manner whereby coated and uncoated areas are alternately present on such surface; the hallmark coating being formed of a photoconducting substance, having a measurable electrically conductive property when exposed to light of a certain spectral range; said electrically conductive property providing an identifying measurement for such substance; said hallmark coating being applied to said substrate outer surface by cathode sputtering so as to provide a substance-identifying measurement indicative of said hallmark coating in the pure state free of any measurement-altering adulterant such as binders, overlying films, etc.
Claim 24
Dependent Claim
137 words
In a security paper such as a bank note, the combination comprising a single-layer, sheet-like paper substrate; a hallmark in the form of a coating for providing verification of the authenticity of the security paper; said coating being disposed on an outer surface of said security paper in a discontinuous manner whereby coated and uncoated areas are alternately present on such surface; the hallmark coating being formed of a photoconducting substance, having a measurable electrically conductive property when exposed to light of a certain spectral range; said electrically conductive property providing an identifying measurement for such substance; said hallmark coating being applied to said substrate outer surface by cathode sputtering so as to provide a substance-identifying measurement indicative of said hallmark coating in the pure state free of any measurement-altering adulterant such as binders, overlying films, etc.
Claim 25
Dependent Claim
139 words
In a security paper such as a bank note, the combination comprising a single-layer, sheet-like paper substrate; a hallmark in the form of a coating for providing verification of the authenticity of the security paper, said coating being disposed on an outer surface of said security paper in a discontinuous manner whereby coated and uncoated areas are alternately present on such surface; the hallmark coating being formed of a substance which has an absorption spectrum in the UV-spectral range differing from that of said security paper; the absorption spectrum of said substance providing an identifying measurement for such substance; said hallmark coating being applied to said substrate outer surface by cathode sputtering so as to provide a substance-identifying measurement indicative of said hallmark coating in the pure state free of any measurement-altering adulterant such as binders, overlying films, etc.
Claim 26
Dependent Claim
139 words
In a security paper such as a bank note, the combination comprising a single-layer, sheet-like paper substrate; a hallmark in the form of a coating for providing verification of the authenticity of the security paper, said coating being disposed on an outer surface of said security paper in a discontinuous manner whereby coated and uncoated areas are alternately present on such surface; the hallmark coating being formed of a substance which has an absorption spectrum in the UV-spectral range differing from that of said security paper; the absorption spectrum of said substance providing an identifying measurement for such substance; said hallmark coating being applied to said substrate outer surface by cathode sputtering so as to provide a substance-identifying measurement indicative of said hallmark coating in the pure state free of any measurement-altering adulterant such as binders, overlying films, etc.
Claim 27
Dependent Claim
132 words
In a security paper such as a bank note, the combination comprising single-layer, sheet-like paper substrate; a hallmark in the form of a coating for providing verification of the authenticity of the security paper; said coating being disposed on an outer surface of said security paper in a discontinuous manner whereby coated and uncoated areas are alternately present on such surface; the hallmark coating being formed of a substance having electrically conducting properties and providing conductivity values ranging between predetermined upper and lower limits for providing an identifying measurement for such substance; said hallmark coating being applied to said substrate outer surface by cathode sputtering so as to provide a substance-identifying measurement indicative of said hallmark coating in the pure state free of any measurement-altering adulterant such as binders, overlying film, etc.
Claim 28
Dependent Claim
132 words
In a security paper such as a bank note, the combination comprising single-layer, sheet-like paper substrate; a hallmark in the form of a coating for providing verification of the authenticity of the security paper; said coating being disposed on an outer surface of said security paper in a discontinuous manner whereby coated and uncoated areas are alternately present on such surface; the hallmark coating being formed of a substance having electrically conducting properties and providing conductivity values ranging between predetermined upper and lower limits for providing an identifying measurement for such substance; said hallmark coating being applied to said substrate outer surface by cathode sputtering so as to provide a substance-identifying measurement indicative of said hallmark coating in the pure state free of any measurement-altering adulterant such as binders, overlying film, etc.
Claim 29
Dependent Claim
124 words
In a security paper such as a bank note, the combination comprising a single-layer, sheet-like paper substrate; a substantially invisible hallmark in the form of a coating for providing verification of the authenticity of the security paper; said coating being disposed on an outer surface of said security paper in a discontinuous manner whereby coated and uncoated areas are alternatively present on such surface; the hallmark coating being formed of a substance having a measurable physical property providing an identifying measurement for such substance; said hallmark coating being applied to said substrate outer surface by cathode sputtering so as to provide a substance-identifying measurement indicative of said hallmark coating in the pure state free of any measurement-altering adulterant such as binders, overlying films, etc.
Claim 30
Dependent Claim
124 words
In a security paper such as a bank note, the combination comprising a single-layer, sheet-like paper substrate; a substantially invisible hallmark in the form of a coating for providing verification of the authenticity of the security paper; said coating being disposed on an outer surface of said security paper in a discontinuous manner whereby coated and uncoated areas are alternatively present on such surface; the hallmark coating being formed of a substance having a measurable physical property providing an identifying measurement for such substance; said hallmark coating being applied to said substrate outer surface by cathode sputtering so as to provide a substance-identifying measurement indicative of said hallmark coating in the pure state free of any measurement-altering adulterant such as binders, overlying films, etc.
Claim 31
Dependent Claim
142 words
In a security paper such as a bank note, the combination comprising a single-layer, sheet-like paper substrate; a substantially invisible hallmark in the form of a coating for providing verification of the authenticity of the security paper; said coating being disposed on an outer surface of said security paper in a discontinuous manner whereby coated and uncoated areas are alternately present on such surface; the hallmark coating being formed of a fluorescing substance which emits light in a certain spectral range when exposed to light of a different spectral range; the fluorescense of said substance providing an identifying measurement for such substance; said hallmark coating being applied to said substrate outer surface by cathode sputtering so as to provide a substance-identifying measurement indicative of said hallmark coating in the pure state free of any measurement-altering adulterant such as binders, overlying films, etc.
Claim 32
Dependent Claim
142 words
In a security paper such as a bank note, the combination comprising a single-layer, sheet-like paper substrate; a substantially invisible hallmark in the form of a coating for providing verification of the authenticity of the security paper; said coating being disposed on an outer surface of said security paper in a discontinuous manner whereby coated and uncoated areas are alternately present on such surface; the hallmark coating being formed of a fluorescing substance which emits light in a certain spectral range when exposed to light of a different spectral range; the fluorescense of said substance providing an identifying measurement for such substance; said hallmark coating being applied to said substrate outer surface by cathode sputtering so as to provide a substance-identifying measurement indicative of said hallmark coating in the pure state free of any measurement-altering adulterant such as binders, overlying films, etc.
Claim 33
Dependent Claim
139 words
In a security paper such as a bank note, the combination comprising a single-layer, sheet-like paper substrate; a substantially invisible hallmark in the form of a coating for providing verification of the authenticity of the security paper; said coating being disposed on an outer surface of said security paper in a discontinuous manner whereby coated and uncoated areas are alternately present on such surface; the hallmark coating being formed of a photoconducting substance, having a measurable electrically conductive property when exposed to light of a certain spectral range; said electrically conductive property providing an identifying measurement for such substance; said hallmark coating being applied to said substrate outer surface by cathode sputtering so as to provide a substance-identifying measurement indicative of said hallmark coating in the pure state free of any measurement-altering adulterant such as binders, overlying films, etc.
Claim 34
Dependent Claim
139 words
In a security paper such as a bank note, the combination comprising a single-layer, sheet-like paper substrate; a substantially invisible hallmark in the form of a coating for providing verification of the authenticity of the security paper; said coating being disposed on an outer surface of said security paper in a discontinuous manner whereby coated and uncoated areas are alternately present on such surface; the hallmark coating being formed of a photoconducting substance, having a measurable electrically conductive property when exposed to light of a certain spectral range; said electrically conductive property providing an identifying measurement for such substance; said hallmark coating being applied to said substrate outer surface by cathode sputtering so as to provide a substance-identifying measurement indicative of said hallmark coating in the pure state free of any measurement-altering adulterant such as binders, overlying films, etc.
Claim 35
Dependent Claim
141 words
In a security paper such as a bank note, the combination comprising a single-layer, sheet-like paper substrate; a substantially invisible hallmark in the form of a coating for providing verification of the authenticity of the security paper, said coating being disposed on an outer surface of said security paper in a discontinuous manner whereby coated and uncoated areas are alternately present on such surface; the hallmark coating being formed of a substance which has an absorption spectrum in the UV-spectral range differing from that of said security paper; the absorption spectrum of said substance providing an identifying measurement for such substance; said hallmark coating being applied to said substrate outer surface by cathode sputtering so as to provide a substance-identifying measurement indicative of said hallmark coating in the pure state free of any measurement-altering adulterant such as binders, overlying films, etc.
Claim 36
Dependent Claim
141 words
In a security paper such as a bank note, the combination comprising a single-layer, sheet-like paper substrate; a substantially invisible hallmark in the form of a coating for providing verification of the authenticity of the security paper, said coating being disposed on an outer surface of said security paper in a discontinuous manner whereby coated and uncoated areas are alternately present on such surface; the hallmark coating being formed of a substance which has an absorption spectrum in the UV-spectral range differing from that of said security paper; the absorption spectrum of said substance providing an identifying measurement for such substance; said hallmark coating being applied to said substrate outer surface by cathode sputtering so as to provide a substance-identifying measurement indicative of said hallmark coating in the pure state free of any measurement-altering adulterant such as binders, overlying films, etc.
Claim 37
Dependent Claim
134 words
In a security paper such as a bank note, the combination comprising single-layer, sheet-like paper substrate; a substantially invisible hallmark in the form of a coating for providing verification of the authenticity of the security paper; said coating being disposed on an outer surface of said security paper in a discontinuous manner whereby coated and uncoated areas are alternately present on such surface; the hallmark coating being formed of a substance having electrically conducting properties and providing conductivity values ranging between predetermined upper and lower limits for providing an identifying measurement for such substance; said hallmark coating being applied to said substrate outer surface by cathode sputtering so as to provide a substance-identifying measurement indicative of said hallmark coating in the pure state free of any measurement-altering adulterant such as binders, overlying film, etc.
Claim 38
Dependent Claim
134 words
In a security paper such as a bank note, the combination comprising single-layer, sheet-like paper substrate; a substantially invisible hallmark in the form of a coating for providing verification of the authenticity of the security paper; said coating being disposed on an outer surface of said security paper in a discontinuous manner whereby coated and uncoated areas are alternately present on such surface; the hallmark coating being formed of a substance having electrically conducting properties and providing conductivity values ranging between predetermined upper and lower limits for providing an identifying measurement for such substance; said hallmark coating being applied to said substrate outer surface by cathode sputtering so as to provide a substance-identifying measurement indicative of said hallmark coating in the pure state free of any measurement-altering adulterant such as binders, overlying film, etc.
Claim 39
Dependent Claim
34 words
A security paper according to one of the claims 17, 18, 19, 20, 21, 22, 23, 24, 25 or 26, wherein the hallmark substance is applied in the form of stripes, patterns or figures.
Claim 40
Dependent Claim
35 words
A security paper according to one of the claims 18 or 26, wherein the fluorescent emission of the coating can be excited by light with wavelength less than 400 nm, preferably less than 300 nm.
Claim 41
Dependent Claim
22 words
A security paper according to one of the claims 18 or 26 wherein the coating consists of yttrium oxide doped with europium.
Claim 42
Dependent Claim
24 words
A security paper according to one of the claims 18, 19, 23 or 24, wherein the coating consists of zinc sulfide doped with copper.
Claim 43
Dependent Claim
42 words
A security paper according to one of the claims 20 or 25, wherein the coating and the paper substrate are matched in such a way that the absorption edge of the coating is still in the transmission range of the paper substrate.
Claim 44
Dependent Claim
14 words
A security paper according to claim 31, wherein the coating consists of zinc oxide.
Claim 45
Dependent Claim
30 words
A security paper according to one of the claims 21 or 26, wherein the coating is a member selected from the group consisting of metals, metal compounds and mixtures thereof.
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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) | 1989-05-26 | 1989-11-25 | 1990-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-26 | 1993-11-25 | 1994-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-26 | 1997-11-25 | 1998-05-27 | $7700.00 | Window Closed / Lapsed |