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US4568184A Expired / Lapsed US ⏱️ 0.0 years remaining

Reader card for densitometric test analysis

Assignee: Hitachi Chemical Diagnostics Inc
•
Filing: 1983-04-08
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Granted: 1986-02-04
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Expires: 2003-04-08
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Abstract

Abstract A reader card for use in densitometric test analysis wherein a film having data recorded as spots thereon is supported by and retained on a base card, the reader card further having an area for use in establishing initial conditions for the optical system of the densitometer and a series of borders for indicating the relative position of the film on the card to the optical system of the densitometer. In a preferred embodiment, the reader card includes a base card having an opening therethrough, and an overlay thereover. The overlay retains the film in place and includes a black band covering the film, the black band having windows therethrough for observing and measuring the spots.

Inventors

  • 👤 Gary B. Krantz
  • 👤 Christopher A. Conde

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 06:28
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/59; G01N21/5907; G01N21/5911

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 149 words
A reader card used in analyzing previously exposed photographic film, the film having thereon a plurality of longitudinally spaced-apart spots whose intensities vary in accordance with a response level to a testing procedure, comprising: a base card having an opening therethrough, the opening being dimensioned so that the spots on the film lie within the projection of said opening when the film is placed onto said base card; an overlay over at least a portion of said base card; an opaque band on said overlay, said band covering said opening; and a plurality of longitudinally spaced-apart, transparent windows through said opaque band, each of said windows being dimensioned and disposed for registration over the film so that the spots on the film are individually viewable in light passing through said opening and said window; and means for retaining the film in registration with said windows and overlying said opening.
Claim 2
Dependent Claim 149 words
A reader card used in analyzing previously exposed photographic film, the film having thereon a plurality of longitudinally spaced-apart spots whose intensities vary in accordance with a response level to a testing procedure, comprising: a base card having an opening therethrough, the opening being dimensioned so that the spots on the film lie within the projection of said opening when the film is placed onto said base card; an overlay over at least a portion of said base card; an opaque band on said overlay, said band covering said opening; and a plurality of longitudinally spaced-apart, transparent windows through said opaque band, each of said windows being dimensioned and disposed for registration over the film so that the spots on the film are individually viewable in light passing through said opening and said window; and means for retaining the film in registration with said windows and overlying said opening.
Claim 3
Dependent Claim 24 words
The reader card of claim 1, wherein said means for retaining the film is a pocket formed between said base card and said overlay.
Claim 4
Dependent Claim 16 words
The reader card of claim 1, wherein said overlay is constructed by a transparent plastic material.
Claim 5
Dependent Claim 16 words
The reader card of claim 1, wherein the spots on the data record indicate allergic sensitivities.
Claim 6
Dependent Claim 15 words
The reader card of claim 1, wherein said opaque band has about thirty windows therethrough.
Claim 7
Dependent Claim 27 words
The reader card of claim 1, wherein said overlay is constructed of at least two plies of a transparent plastic material with an adhesive between said plies.
Claim 8
Dependent Claim 12 words
The reader card of claim 1, wherein said opaque band is black.
Claim 9
Dependent Claim 248 words
A reader card for use in analyzing previously exposed photographic film, the film having thereon a plurality of longitudinally spaced-apart spots whose intensities vary in accordance with a response level to an immunological testing procedure, comprising: an elongated cardboard base card having an opening therethrough, said opening being elongated in the same direction as said base card, said opening being dimensioned so that the spots on the film lie within the projection of said opening when the film is placed onto said base card; a transparent overlay joined to said base card along one edge thereof and also joined to said base card along a pair of strips parallel to but spaced-apart from the sides of said opening, the three regions of joinder, said base card and said overlay together defining a pocket for receiving the film, said overlay having two plies and an adhesive layer therebetween, a portion of the ply adjacent the base card being removable to expose the adhesive so that said overlay may be adhesively joined to said base card along a fourth region of joinder to close said pocket after the film is inserted therein; a black band inprinted on said overlay, said band being dimensioned and disposed to cover at least said opening; and a plurality of longitudinally spaced-apart, transparent windows through said black band, each of said windows being disposed for registration over a separate spot on the film and being dimensioned so that the spot is visible through said window.
Claim 10
Dependent Claim 248 words
A reader card for use in analyzing previously exposed photographic film, the film having thereon a plurality of longitudinally spaced-apart spots whose intensities vary in accordance with a response level to an immunological testing procedure, comprising: an elongated cardboard base card having an opening therethrough, said opening being elongated in the same direction as said base card, said opening being dimensioned so that the spots on the film lie within the projection of said opening when the film is placed onto said base card; a transparent overlay joined to said base card along one edge thereof and also joined to said base card along a pair of strips parallel to but spaced-apart from the sides of said opening, the three regions of joinder, said base card and said overlay together defining a pocket for receiving the film, said overlay having two plies and an adhesive layer therebetween, a portion of the ply adjacent the base card being removable to expose the adhesive so that said overlay may be adhesively joined to said base card along a fourth region of joinder to close said pocket after the film is inserted therein; a black band inprinted on said overlay, said band being dimensioned and disposed to cover at least said opening; and a plurality of longitudinally spaced-apart, transparent windows through said black band, each of said windows being disposed for registration over a separate spot on the film and being dimensioned so that the spot is visible through said window.
Claim 11
Dependent Claim 16 words
The reader card of claim 8, wherein one dimension of said card is about 31/4 inches.
Claim 12
Dependent Claim 19 words
The reader card of claim 8, wherein the plies of said overlay are formed of a transparent plastic film.

References Cited (Backward Citations)

US3551023A Cited
US3705294A Cited
US3997992A Cited
US4174178A Cited
US3990850A Cited
US4180741A Cited
US4365895A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-02-03 1989-08-05 1990-02-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-02-03 1993-08-05 1994-02-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-02-03 1997-08-05 1998-02-04 $7700.00 Window Closed / Lapsed

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