EP0234885A2
Expired / Lapsed
EP
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Document bearing characteristic ink-printed indicia juxtaposed with corresponding characteristic synthetic watermark and method for producing same
Assignee: Moore Business Forms Inc
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Filing: 1987-02-20
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Granted: —
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Expires: 2007-02-20
Abstract
Abstract A document security system is provided by providing each document with a synthetic watermark, for instance using the process, compositions and apparatus disclosed in the aforementioned U.S. patent of Norris, et al and, within the perimeter of at least one of the symbols which is provided by the synthetic watermark, an identical complementary or otherwise corresponding symbol is printed using ink, paint, dye, stain or similarly contrastingly pigmented substance so as to create, in combination with the synthetic watermark a juxtaposition that can be looked-for as evidence that the document is genuine and its serial number unaltered.
Inventors
- 👤 Edmund G. Van Malderghem
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 10:32
CPC Classifications
B; B41; B41M; B41M1/00; B41M1/26; B41M1/30; B41M3/00; B41M3/14
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
102 words
A document printed on at least somewhat translucent paper and provided with identifying characteristics, including: a first string of characters provided as a synthetic watermark field in which the relative translucence but not the color of the paper is contrasted, this string including at least one character; and a second string of characters provided as an ink-imprinted field in which the color of the paper is contrasted, this string also including at least one character; wherein at least one character in said synthetic watermark field is provided to have a characteristic relative juxtaposition with at least one character in said ink-imprinted field.
Claim 2
Dependent Claim
102 words
A document printed on at least somewhat translucent paper and provided with identifying characteristics, including: a first string of characters provided as a synthetic watermark field in which the relative translucence but not the color of the paper is contrasted, this string including at least one character; and a second string of characters provided as an ink-imprinted field in which the color of the paper is contrasted, this string also including at least one character; wherein at least one character in said synthetic watermark field is provided to have a characteristic relative juxtaposition with at least one character in said ink-imprinted field.
Claim 3
Dependent Claim
35 words
The document provided with identifying characteristics of claim 1, wherein: said at least one character in said synthetic watermark field at least partially surrounds a respective said at least one character in said ink-imprinted field.
Claim 4
Dependent Claim
65 words
The document provided with identifying characteristics of claim 2, wherein: said at least one character in said synthetic watermark field which at least partially surrounds said at least one character in said ink-imprinted field is a replication of the same character, so that said at least one character in said ink-imprinted field is haloed by said at least one character in said synthetic watermark field.
Claim 5
Dependent Claim
33 words
The document provided with identifying characteristics of claim 1, wherein: said at least one character in said synthetic watermark field lies non-overlappingly characteristically adjacent said at least one character in said ink-imprinted field.
Claim 6
Dependent Claim
25 words
The document provided with identifying characteristics of claim 4, wherein: on each document said strings are provided in a line common to both of them.
Claim 7
Dependent Claim
38 words
The document provided with identifying characteristics of claim 5, wherein: at least one of said at least one characters in at least one of said fields is provided in a gap in the corresponding other of said fields.
Claim 8
Dependent Claim
104 words
A series of documents printed on paper, each being provided with a unique serial number, which includes: a first string of characters provided as a synthetic watermark field in which the relative translucence but not the color of the paper is contrasted, this string including at least one character; and a second string of characters provided as an ink-imprinted field in which the color of the paper is contrasted, this string also including at least one character; wherein at least one character in said synthetic watermark field is provided to have a characteristic relative juxtaposition with at least one character in said ink-imprinted field.
Claim 9
Dependent Claim
104 words
A series of documents printed on paper, each being provided with a unique serial number, which includes: a first string of characters provided as a synthetic watermark field in which the relative translucence but not the color of the paper is contrasted, this string including at least one character; and a second string of characters provided as an ink-imprinted field in which the color of the paper is contrasted, this string also including at least one character; wherein at least one character in said synthetic watermark field is provided to have a characteristic relative juxtaposition with at least one character in said ink-imprinted field.
Claim 10
Dependent Claim
21 words
The series of serially numbered documents of claim 7, in which: said documents are severally connected in series as a web.
Claim 11
Dependent Claim
35 words
The series of serially numbered documents of claim 7, wherein: said at least one character in said synthetic watermark field at least partially surrounds a respective said at least one character in said ink-imprinted field.
Claim 12
Dependent Claim
65 words
The series of serially numbered documents of claim 9, wherein: said at least one character in said synthetic watermark field which at least partially surrounds said at least one character in said ink-imprinted field is a replication of the same character, so that said at least one character in said ink-imprinted field is haloed by said at least one character in said synthetic watermark field.
Claim 13
Dependent Claim
33 words
The series of serially numbered documents of claim 7, wherein: said at least one character in said synthetic watermark field lies non-ovelappingly characteristically adjacent said at least one character in said ink-imprinted field.
Claim 14
Dependent Claim
25 words
The series of serially numbered documents of claim 11, wherein: on each document said strings are provided in a line common to both of them.
Claim 15
Dependent Claim
38 words
The series of serially numbered documents of claim 12, wherein: at least one of said at least one characters in at least one of said fields is provided in a gap in the corresponding other of said fields.
Claim 16
Independent Claim
94 words
A method for providing each document in a series of paper documents with a serial number, which includes: printing on each document a first string of characters as a synthetic watermark field in which relative translucence but not the color of the paper is contrasted; and printing on each document a second string of characters as an ink-imprinted field in which the color of the paper is contrasted, while providing that at least one character in said synthetic watermark field has a characteristic relative juxtaposition with at least one character in said ink-imprinted field.
Claim 17
Independent Claim
94 words
A method for providing each document in a series of paper documents with a serial number, which includes: printing on each document a first string of characters as a synthetic watermark field in which relative translucence but not the color of the paper is contrasted; and printing on each document a second string of characters as an ink-imprinted field in which the color of the paper is contrasted, while providing that at least one character in said synthetic watermark field has a characteristic relative juxtaposition with at least one character in said ink-imprinted field.
Claim 18
Dependent Claim
27 words
The method of claim 14, wherein: at least one said character in at least one said field is stepped in identity on successive documents in said series.
Claim 19
Dependent Claim
35 words
The method of claim 15, wherein: said at least one characteristically juxtaposted character in said synthetic watermark field at least partially surrounds a respective said at least one characteristically juxtaposed character in said ink-imprinted field.
Claim 20
Dependent Claim
35 words
The method of claim 16, wherein: at least one respective said surrounded and surrounding juxtaposed character in said fields is said at least one character which steps in identity on successive document in said series.
Claim 21
Dependent Claim
61 words
The method of claim 16, wherein: said at least one character in said synthetic watermark field which at least partially surrounds said at least one character in said ink-imprinted field is a replication of the same character, so that said at least one character in said ink-imprinted field is haloed by said at least one character in said synthetic watermark field.
Claim 22
Dependent Claim
29 words
The method of claim 14, wherein: said at least one character in said synthetic watermark field lies non-overlappingly characteristically adjacent said at least one character in said ink-imprinted field.
Claim 23
Dependent Claim
21 words
The method of claim 19, wherein: on each document said strings are provided in a line common to both of them.
Claim 24
Dependent Claim
34 words
The method of claim 20, wherein: at least one of said at least one characters in at least one of said fields is provided in a gap in the corresponding other of said fields.
References Cited (Backward Citations)
No citation records indexed.
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