US4468371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Immunoassay test slide
Assignee: Hitachi Chemical Diagnostics Inc
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Filing: 1982-07-19
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Granted: 1984-08-28
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Expires: 2002-07-19
Abstract
Abstract A test slide for the performance of a series of immunoassay tests having: a substantially elongated and thin body of solid material; a plurality of individual test wells formed in said body; alignment means formed in said body in association with each of said wells; and movement facilitating means formed in said body; said slide being suitable for insertion into an automated testing device, said slide moving by said movement facilitating means, and said wells being aligned for detection by said alignment means.
Inventors
- 👤 Anthony B. Chen
- 👤 Richard A. Harte
- 👤 Nancy K. Kaufman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:02
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/53; G01N33/5302; G01N33/5304; Y; Y10; Y10S; Y10S436/00; Y10S436/807; Y10S436/809
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
83 words
A test slide for the performance of a series of immunoassay tests comprising a substantially elongated and thin body of solid material; a plurality of individual test wells formed in said body, alignment means formed in said body in association with each of said wells, and movement facilitating means formed in said body, said slide being suitable for insertion into an automated testing device, said slide moving by said movement facilitating means, and said wells being aligned for detection by said alignment means.
Claim 2
Dependent Claim
83 words
A test slide for the performance of a series of immunoassay tests comprising a substantially elongated and thin body of solid material; a plurality of individual test wells formed in said body, alignment means formed in said body in association with each of said wells, and movement facilitating means formed in said body, said slide being suitable for insertion into an automated testing device, said slide moving by said movement facilitating means, and said wells being aligned for detection by said alignment means.
Claim 3
Dependent Claim
22 words
The test slide described in claim 1 wherein a horizontal cross-section of each of said test wells is substantially circular in shape.
Claim 4
Dependent Claim
32 words
The test slide of claims 1 or 2 wherein the acute angle formed between the plane of said bottom surface of each test well and its associated diverging sidewall is approximately 68°.
Claim 5
Dependent Claim
41 words
The test slide of claim 3 wherein each test well has a depth of approximately 0.080 inches, said bottom surface has a diameter of approximately 0.188 inches and the opening of each test well has a diameter of approximately 0.25 inches.
Claim 6
Dependent Claim
30 words
The test slide as described in claim 4 wherein an immunosubstrate layer is formed in the bottom of each said test well to aid in the performance of immunoassay testing.
Claim 7
Dependent Claim
17 words
The test well of claim 5 wherein said immunosubstrate layer has a thickness of approximately 0.004 inches.
Claim 8
Dependent Claim
95 words
A test slide for the performance of a series of immunoassay tests employing an automatic testing device comprising: a substantially elongated and thin body of solid material; a rack formed along one elongated edge of said body for engagement with an automatic testing device; a plurality of test wells substantially evenly spaced in a linear manner along the length of said body; and a plurality of notches formed in said body, each notch being positioned in alignment with a different one of said test wells, thereby to align the wells in the automatic testing device.
Claim 9
Dependent Claim
95 words
A test slide for the performance of a series of immunoassay tests employing an automatic testing device comprising: a substantially elongated and thin body of solid material; a rack formed along one elongated edge of said body for engagement with an automatic testing device; a plurality of test wells substantially evenly spaced in a linear manner along the length of said body; and a plurality of notches formed in said body, each notch being positioned in alignment with a different one of said test wells, thereby to align the wells in the automatic testing device.
Claim 10
Dependent Claim
112 words
A test slide for the performance of a series of immunoassay tests comprising: a substantially elongated and thin body of solid material; a plurality of test wells formed in said body, each of said test wells having a substantially flat bottom with an immunosubstrate layer having a thickness of approximately 0.004 inches deposited thereon; diverging sidewalls joined to and extending away from said bottom surface; a rack formed along one elongated edge of said body for engagement with an automated testing device; and a plurality of notches formed in said body, each notch being positioned in alignment with one of said test wells, thereby to align said wells within the testing device.
Claim 11
Dependent Claim
112 words
A test slide for the performance of a series of immunoassay tests comprising: a substantially elongated and thin body of solid material; a plurality of test wells formed in said body, each of said test wells having a substantially flat bottom with an immunosubstrate layer having a thickness of approximately 0.004 inches deposited thereon; diverging sidewalls joined to and extending away from said bottom surface; a rack formed along one elongated edge of said body for engagement with an automated testing device; and a plurality of notches formed in said body, each notch being positioned in alignment with one of said test wells, thereby to align said wells within the testing device.
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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) | 1987-08-28 | 1988-02-27 | 1988-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-28 | 1992-02-27 | 1992-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-28 | 1996-02-27 | 1996-08-28 | $7700.00 | Window Closed / Lapsed |