Patent US4634872A successfully refreshed from Google Patents.
US4634872A
Expired / Lapsed
US
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Process for checking the authenticity of documents as well as apparatus therefor
Assignee: JADRIMEX AUTOMATION GROUP BV
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Filing: 1984-03-02
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Granted: 1987-01-06
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Expires: 2004-03-02
Abstract
Abstract Process and apparatus for checking the authenticity of valuable documents by subjecting the document to be checked in a closed room to at least incident light, transmitting and floodlight, especially floodlight at angles of 0 tot 15°. Apparatus is described with document examination places without relative interference of the different radiation.
Inventors
- 👤 Cornelis D. Janus
- 👤 Alle Wielenga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:10
CPC Classifications
G; G07; G07D; G07D7/00; G07D7/06; G07D7/12; G07D7/128
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
117 words
An apparatus for examining the authenticity of a valuable document, said apparatus comprising: a housing; light means mounted in said housing for irradiating said document with incident light; lamps means mounted in said housing for irradiating said document with one of transmitted light and flood light; a first compartment containing said lamp means; platform means for transmitting light from said lamp means; a first screening location located on said platform means for examining a document by transmitted light from below said platform means; a second compartment containing said light means; a second screening location being illuminated by incident light from said light means; and a third screening location illuminated from above by floodlight from said lamp means.
Claim 2
Independent Claim
117 words
An apparatus for examining the authenticity of a valuable document, said apparatus comprising: a housing; light means mounted in said housing for irradiating said document with incident light; lamps means mounted in said housing for irradiating said document with one of transmitted light and flood light; a first compartment containing said lamp means; platform means for transmitting light from said lamp means; a first screening location located on said platform means for examining a document by transmitted light from below said platform means; a second compartment containing said light means; a second screening location being illuminated by incident light from said light means; and a third screening location illuminated from above by floodlight from said lamp means.
Claim 3
Dependent Claim
28 words
An apparatus for examining the authenticity of a valuable document according to claim 1, wherein said lamp means radiates said document with one of white and colored light.
Claim 4
Dependent Claim
27 words
An apparatus for examining the authenticity of a valuable document according to claim 1, wherein said light means radiates said document with one of fluorescent and UV-light.
Claim 5
Dependent Claim
93 words
An apparatus for examining the authenticity of a valuable document according to claim 1, further comprising at least two compartment defined by said housing, a first compartment containing said lamp means, a platform means for transmitting light from said first compartment, a first screening location located on said platform means for examining a document by transmitted light from said lamp means, a second compartment containing said light means, a second screening location being illuminated by incident light from said light means, and a third screening location illuminated by floodlight from said lamp means.
Claim 6
Dependent Claim
35 words
An apparatus for examining the authenticity of a valuable document according to claim 1, wherein said lamp means is positioned to illuminate said third screening location with floodlight at an angle between 0° to 30°.
Claim 7
Dependent Claim
22 words
An apparatus for examining the authenticity of a valuable document according to claim 5, wherein said angle is between 0° to 15°.
Claim 8
Dependent Claim
29 words
An apparatus for examining the authenticity of a valuable document according to claim 1, wherein said floodlight from said lamp means has a wavelength of 500 to 600 nm.
Claim 9
Dependent Claim
36 words
An apparatus for examining the authenticity of a valuable document according to claim 1, wherein said second screening location is illuminated by one of incident light from said light means and floodlight from said lamp means.
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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) | 1990-01-05 | 1990-07-07 | 1991-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-05 | 1994-07-07 | 1995-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-05 | 1998-07-07 | 1999-01-06 | $7700.00 | Window Closed / Lapsed |