US4092114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indirect latex test for determination of immunoglobulins
Assignee: IL Holding Spa
•
Filing: 1976-10-20
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Granted: 1978-05-30
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Expires: 1996-10-20
Abstract
Abstract Indirect test for the qualitative and quantitative determination of immunoglobulins, G, A or M in human body fluid utilizing immuoglobulins (IgG, IgA and IgM) chemically coupled to latex carrier particles as the reagent.
Inventors
- 👤 Francis Fremonte Buck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:40
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/53; G01N33/543; G01N33/54313
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
56 words
A method for the determination of immunoglobulins A, M or G in a sample of a human body fluid which comprises mixing a sample of said body fluid with antiserum to immunoglobulins A, M or G; and adding an immunoglobulin latex reagent containing immunoglobulins A, M and G chemically coupled to latex particles to said mixture.
Claim 2
Independent Claim
56 words
A method for the determination of immunoglobulins A, M or G in a sample of a human body fluid which comprises mixing a sample of said body fluid with antiserum to immunoglobulins A, M or G; and adding an immunoglobulin latex reagent containing immunoglobulins A, M and G chemically coupled to latex particles to said mixture.
Claim 3
Dependent Claim
24 words
A method according to claim 1, which comprises applying said method serially to different dilutions of the sample and comparing wih a reference standard.
Claim 4
Dependent Claim
12 words
A method according to claim 1 wherein the body fluid is serum.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-29 | 1981-11-28 | 1982-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-29 | 1985-11-28 | 1986-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-29 | 1989-11-28 | 1990-05-30 | $7700.00 | Window Closed / Lapsed |