US4595439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of forming a multiple profile reagent card
Assignee: Bayer Corp
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Filing: 1985-02-13
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Granted: 1986-06-17
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Expires: 2005-02-13
Abstract
Abstract A multiple profile reagent card for simultaneously or sequentially performing multiple analyses of analyte is formed by applying ribbons of reagent impregnated matrix material parallel to each other on a substrate and then removing portions of at least the matrix material to create separate matrices along each ribbon of matrix material. The multiple profile reagent card facilitates automatic processing of immunochemical, diagnostic and/or serological tests.
Inventors
- 👤 David L. Boger
- 👤 Leighton C. Johnson
- 👤 Jerry T. Pugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:01
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/52; Y; Y10; Y10S; Y10S435/00; Y10S435/805; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1056; Y10T156/1057
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
90 words
A process of forming a multiple profile reagent card for simultaneously or sequentially performing multiple analyses of analyte comprising applying, in a continuous manner, ribbons of reagent impregnated matrix material parallel to and spaced apart from each other on a substrate and then cutting slots completely through the ribbons and substrate perpendicular to the length of the ribbons at selected intervals along each ribbon to form matrices separated by slots along each ribbon of matrix material, whereby runover between adjacent matrices along each ribbon of matrix material is substantially prevented.
Claim 2
Dependent Claim
90 words
A process of forming a multiple profile reagent card for simultaneously or sequentially performing multiple analyses of analyte comprising applying, in a continuous manner, ribbons of reagent impregnated matrix material parallel to and spaced apart from each other on a substrate and then cutting slots completely through the ribbons and substrate perpendicular to the length of the ribbons at selected intervals along each ribbon to form matrices separated by slots along each ribbon of matrix material, whereby runover between adjacent matrices along each ribbon of matrix material is substantially prevented.
Claim 3
Dependent Claim
28 words
The process of claim 1 in which the individual matrices are formed by a die which cuts slots through the ribbons of reagent impregnated matrix material and substrate.
Claim 4
Dependent Claim
11 words
The process of claim 2 in which the substrate is polystyrene.
Claim 5
Dependent Claim
13 words
The process of claim 2 in which the matrix material is filter paper.
References Cited (Backward Citations)
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US3552929A
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US3875044A
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US4087332A
Cited
US4218421A
Cited
US4476149A
Cited
US4459360A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-06-16 | 1989-12-16 | 1990-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-16 | 1993-12-16 | 1994-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-16 | 1997-12-16 | 1998-06-17 | $7700.00 | Window Closed / Lapsed |