Patent US3836754A successfully refreshed from Google Patents.
US3836754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coded card employing differential translucencies
Assignee: Individual
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Filing: 1972-09-18
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Granted: 1974-09-17
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Expires: 1992-09-18
Abstract
Abstract A translucent but not completely transparent card providing one or more areas or data zones where the light transmissivity through the card significantly differs from the overall light transmissivity of the card. At least two levels of light transmissivity are used in an assortment of cards with both levels being different from that of the card itself as well as from each other. A series of such levels may be used in a system with sensors that detect different levels of light transmissivity. A plurality, large or small, of such data zones may be used in either static or dynamic systems and with digital or other types of coding, enabling a large number of differentiable data to be put on any one of a series of cards and making counterfeiting very difficult. The cards may be plastic with fused-together laminations, and the data zones may be provided on one of the inner laminations, or it may be paper with the data zones provided by surface printing.
Inventors
- 👤 F Toye
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:31
CPC Classifications
B; B42; B42D; B42D25/00; B42D25/40; B42D25/45; B42D25/455; B42D25/30; B42D25/305; B42D25/20; B42D25/23; B42D25/309; B42D25/318; B42D25/351; G; G06; G06K; G06K19/00; G06K19/06; G06K19/08; G06K19/10; G06K19/14; G07; G07F; G07F7/00; G07F7/08; G07F7/086
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
76 words
A translucent card comprising a translucent member having substantially uniform light transmissivity of predetermined value greater than an opaque card and less than a void, and at least one specifically located portion on said card providing translucent light transmissivity through said card of a value preselected from a plurality of values of significantly differentiated light transmissivities, each significantly differentiated from full transparency and from the transmissivity of said card elsewhere than at said specifically located portion.
Claim 2
Dependent Claim
76 words
A translucent card comprising a translucent member having substantially uniform light transmissivity of predetermined value greater than an opaque card and less than a void, and at least one specifically located portion on said card providing translucent light transmissivity through said card of a value preselected from a plurality of values of significantly differentiated light transmissivities, each significantly differentiated from full transparency and from the transmissivity of said card elsewhere than at said specifically located portion.
Claim 3
Dependent Claim
15 words
The card of claim 1 having a plurality of said portions of differentiated light transmissivity.
Claim 4
Dependent Claim
16 words
The card of claim 1 wherein said transmissivity is keyed to a particular color of light.
Claim 5
Dependent Claim
46 words
The card of claim 1 wherein said card is paper and each said specifically located portion is printed thereon and reduces the light transmissivity with respect to unprinted portions of said card and an overall design camouflaging each said specifically located portion is also printed thereon.
Claim 6
Dependent Claim
36 words
The card of claim 1 wherein said card is laminated and fused into a single entity and each said specifically located portion is located within an interior portion of said card inaccessible from the surfaces thereof.
Claim 7
Dependent Claim
69 words
A translucent plastic card comprising a translucent member having an overall substantially uniform light transmissivity greater than an opaque card and less than a void and having at least one specifically located portion Providing translucent light transmissivity through said card of a value preselected from a plurality of values of significantly differentiated light transmissivities, each significatly differentiated from full transparency and from said overall uniform transmissivity of said card.
Claim 8
Dependent Claim
69 words
A translucent plastic card comprising a translucent member having an overall substantially uniform light transmissivity greater than an opaque card and less than a void and having at least one specifically located portion Providing translucent light transmissivity through said card of a value preselected from a plurality of values of significantly differentiated light transmissivities, each significatly differentiated from full transparency and from said overall uniform transmissivity of said card.
Claim 9
Dependent Claim
15 words
The card of claim 6 having a plurality of said portions of differentiated light transmissivity.
Claim 10
Dependent Claim
57 words
A non-transparent, imperforate, light-scattering, translucent, laminated card having a substantially uniform light transmissivity over much of its area and having at least one area inside said card inaccessible from the surface providing a data zone for said card with light transmissivity distinguishable from said uniform transmissivity and doing so in one of a plurality of differentiable transmissivities.
Claim 11
Dependent Claim
57 words
A non-transparent, imperforate, light-scattering, translucent, laminated card having a substantially uniform light transmissivity over much of its area and having at least one area inside said card inaccessible from the surface providing a data zone for said card with light transmissivity distinguishable from said uniform transmissivity and doing so in one of a plurality of differentiable transmissivities.
Claim 12
Dependent Claim
23 words
The card of claim 8 wherein all said laminations are plastic and all said laminations are fused together into an integral, inseperable whole.
Claim 13
Dependent Claim
12 words
The card of claim 8 having a plurality of said data zones.
Claim 14
Dependent Claim
18 words
The card of claim 10 wherein said data zones are grouped to provide a binary coded decimal system.
Claim 15
Dependent Claim
14 words
The card of claim 10 having a plurality of rows of said data zones.
Claim 16
Dependent Claim
21 words
The card of claim 12 wherein one said row is a data acquisition zone for timing another said row parallel thereto.
Claim 17
Dependent Claim
20 words
The card of claim 8 wherein said transmissivities are keyed to at least one narrow range of light wave lengths.
Claim 18
Dependent Claim
101 words
An imperforate card comprising: a plurality of plastic layers fused together and including a pair of outer transparent layers providing the two faces of said card, a pair of next-to-outer light-scattering translucent layers next to said transparent layers, at least one of them carrying visible information, and a light-scattering translucent core layer between said next-to-outer layers; the fused-together layers providing a substantially uniform basic light transmissivity therethrough; said core layer providing at specific geometric locations at least one spot adjusting the transmissivity of light through an area of said card to a predetermined level chosen from a plurality of differentiated transmissivities.
Claim 19
Dependent Claim
101 words
An imperforate card comprising: a plurality of plastic layers fused together and including a pair of outer transparent layers providing the two faces of said card, a pair of next-to-outer light-scattering translucent layers next to said transparent layers, at least one of them carrying visible information, and a light-scattering translucent core layer between said next-to-outer layers; the fused-together layers providing a substantially uniform basic light transmissivity therethrough; said core layer providing at specific geometric locations at least one spot adjusting the transmissivity of light through an area of said card to a predetermined level chosen from a plurality of differentiated transmissivities.
Claim 20
Dependent Claim
11 words
The card of claim 15 having a plurality of said spots.
Claim 21
Dependent Claim
14 words
The card of claim 16 wherein said spots are grouped in a digital code.
Claim 22
Dependent Claim
12 words
The card of claim 15 wherein said spots are grouped in rows.
Claim 23
Dependent Claim
109 words
An identification system including in combination: a series of translucent identification cards, each comprising a translucent member having a uniform light transmissivity of predetermined value greater than an opaque card and less than a void, and having at least one specifically located portion providing translucent light transmissivity through said card of a value preselected from a plurality of values of significantly differentiated light transmissivities, each significantly differentiated from full transparency and from the transmissivity of said card, and a card reader having means for reading the transmissivity level of each of said portions of any such card and means for indicating said levels in terms of a decoding indicium.
Claim 24
Dependent Claim
109 words
An identification system including in combination: a series of translucent identification cards, each comprising a translucent member having a uniform light transmissivity of predetermined value greater than an opaque card and less than a void, and having at least one specifically located portion providing translucent light transmissivity through said card of a value preselected from a plurality of values of significantly differentiated light transmissivities, each significantly differentiated from full transparency and from the transmissivity of said card, and a card reader having means for reading the transmissivity level of each of said portions of any such card and means for indicating said levels in terms of a decoding indicium.
Claim 25
Dependent Claim
12 words
The system of claim 19 having a plurality of said data zones.
Claim 26
Dependent Claim
112 words
An identification system including in combination: a series of non-transparent, translucent, light scattering identification cards each made from laminated plastic and each having a substantially uniform light transmissivity over much of the area and having in between opposite faces of the card a concealed portion inaccessible from the surface, providing a series of small specifically located areas providing data zones each with light transmissivity differentiated from said uniform transmissivity and doing so in one of a plurality of differentiable transmissivities, and a card reader having means for reading the transmissivity level of each of said areas of any such card and means for indicating said levels in terms of a decoding indicium.
Claim 27
Dependent Claim
112 words
An identification system including in combination: a series of non-transparent, translucent, light scattering identification cards each made from laminated plastic and each having a substantially uniform light transmissivity over much of the area and having in between opposite faces of the card a concealed portion inaccessible from the surface, providing a series of small specifically located areas providing data zones each with light transmissivity differentiated from said uniform transmissivity and doing so in one of a plurality of differentiable transmissivities, and a card reader having means for reading the transmissivity level of each of said areas of any such card and means for indicating said levels in terms of a decoding indicium.
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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) | 1977-09-16 | 1978-03-18 | 1978-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-16 | 1982-03-18 | 1982-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-16 | 1986-03-18 | 1986-09-17 | $7700.00 | Window Closed / Lapsed |