US4176174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Viral antibody diagnostic test system
Assignee: Murex Diagnostics Inc
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Filing: 1978-09-27
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Granted: 1979-11-27
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Expires: 1998-09-27
Abstract
Abstract A diagnostic reagent for detecting the presence of specific microbial antibodies in body fluids which comprises a gel containing intact erythrocytes, which have appropriate microbial particles adhering directly or indirectly to the surface thereof, the gel being contained in a shallow vessel. The system may additionally include complement, or alternatively this may be added separately and after test-body fluids have been applied to the gel. Interaction of specific antibodies with the microbial particles, in the presence of complement results in the lysis of the erythrocytes thereby forming a visible positive result.
Inventors
- 👤 Stuart M. Russell
- 👤 Leonard W. J. Bishop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:19
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/58; G01N33/585; G01N33/586; G01N33/53; G01N33/543; G01N33/554; G01N33/555; G01N33/558; G01N33/559; G01N33/569; G01N33/56983; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/823; Y10S435/962; Y10S435/966; Y10S436/00; Y10S436/811; Y10S436/826
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
65 words
A specific viral antibody detecting diagnostic system suitable for measuring the amount of antibodies in a test fluid comprising a layer of gel from 0.1 to 5 mm thick, which contains: (a) intact erythrocytes having appropriate viruses adhering to the surface thereof; (b) an erythrocyte preservative; (c) a bacteriocidal/fungicidal agent; and wherein one or more wells are cut in the gel for receiving test fluid.
Claim 2
Dependent Claim
65 words
A specific viral antibody detecting diagnostic system suitable for measuring the amount of antibodies in a test fluid comprising a layer of gel from 0.1 to 5 mm thick, which contains: (a) intact erythrocytes having appropriate viruses adhering to the surface thereof; (b) an erythrocyte preservative; (c) a bacteriocidal/fungicidal agent; and wherein one or more wells are cut in the gel for receiving test fluid.
Claim 3
Dependent Claim
65 words
A specific rubella antibody detecting diagnostic system suitable for measuring the amount of antibodies in a test fluid comprising a layer of gel from 0.1 to 5 mm thick, which contains: (a) intact erythrocytes having rubella virus adhering to the surface thereof; (b) an erythrocyte preservative; (c) a bacteriocidal/fungicidal agent; and wherein one or more wells are cut into the gel for receiving test fluid.
Claim 4
Dependent Claim
65 words
A specific rubella antibody detecting diagnostic system suitable for measuring the amount of antibodies in a test fluid comprising a layer of gel from 0.1 to 5 mm thick, which contains: (a) intact erythrocytes having rubella virus adhering to the surface thereof; (b) an erythrocyte preservative; (c) a bacteriocidal/fungicidal agent; and wherein one or more wells are cut into the gel for receiving test fluid.
References Cited (Backward Citations)
US3715427A
Cited
US3843777A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-11-26 | 1983-05-28 | 1983-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-26 | 1987-05-28 | 1987-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-26 | 1991-05-28 | 1991-11-27 | $7700.00 | Window Closed / Lapsed |