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US4248829A Expired / Lapsed US ⏱️ 0.0 years remaining

Integrated analytical material suitable for simultaneously performing a plurality of analyses

Assignee: Fujifilm Holdings Corp
•
Filing: 1979-12-07
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Granted: 1981-02-03
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Expires: 1999-12-07
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Abstract

Abstract An integrated material for chemically analyzing a liquid sample comprising a supporting plate having provided thereon two or more different analytical units each comprising a reagent layer and a porous spreading layer or a portion of a common porous spreading layer, the units being disposed such that at least a portion of the reagent layers are in contact with or in close proximity to one another with the porous spreading layer(s) of the units being commonly covered with a liquid sample delivering patch.

Inventors

  • 👤 Masao Kitajima
  • 👤 Asaji Kondo
  • 👤 Fuminori Arai

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 16:04
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/52; G01N33/525; G01N31/00; G01N31/22; Y; Y10; Y10S; Y10S435/00; Y10S435/805

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 83 words
An integrated material for chemically analyzing a liquid sample comprising a supporting plate having provided thereon two or more different analytical units each comprising a reagent layer and a porous spreading layer or a portion of a common porous spreading layer, said units being disposed such that at least a portion of the reagent layers are in contact with or in close proximity to one another with said porous spreading layer(s) of said units being commonly covered with a liquid sample delivering patch.
Claim 2
Dependent Claim 83 words
An integrated material for chemically analyzing a liquid sample comprising a supporting plate having provided thereon two or more different analytical units each comprising a reagent layer and a porous spreading layer or a portion of a common porous spreading layer, said units being disposed such that at least a portion of the reagent layers are in contact with or in close proximity to one another with said porous spreading layer(s) of said units being commonly covered with a liquid sample delivering patch.

References Cited (Backward Citations)

US3791933A Cited
US3810739A Cited
US4061468A Cited
US4066403A Cited
US4050898A Cited
US4144306A Cited
US4166093A Cited
US4160008A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-02-03 1984-08-04 1985-02-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-02-03 1988-08-04 1989-02-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-02-03 1992-08-04 1993-02-03 $7700.00 Window Closed / Lapsed

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