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Patent US4600698A successfully refreshed from Google Patents.
US4600698A
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Immunological latex agglutination in presence of certain lactones or lactams
Assignee: Hoechst AG
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Filing: 1984-01-30
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Granted: 1986-07-15
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Expires: 2004-01-30
Abstract
Abstract A latex agglutination procedure for detecting and determining one of the participants in an antigen-antibody reaction, in which non-specific reactions are suppressed by additives, and an agent for carrying out this type of procedure are described.
Inventors
- 👤 Tibor Toth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:19
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/74; G01N33/76; G01N33/53; G01N33/543; G01N33/54313; Y; Y10; Y10S; Y10S436/00; Y10S436/811; Y10S436/814; Y10S436/815; Y10S436/817; Y10S436/818; Y10S436/825
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
52 words
A latex agglutination procedure for detecting or determining a participant in an antigen-antibody reaction using the corresponding participant, which procedure comprises allowing the participants to react together in the presence of a compound of the formula I ##STR2## in which X is O or NH, and n is an integer from 2-9.
Claim 2
Dependent Claim
52 words
A latex agglutination procedure for detecting or determining a participant in an antigen-antibody reaction using the corresponding participant, which procedure comprises allowing the participants to react together in the presence of a compound of the formula I ##STR2## in which X is O or NH, and n is an integer from 2-9.
Claim 3
Dependent Claim
22 words
The procedure as claimed in claim 1, wherein the compound of the formula I is butyrolactone, valerolactone, caprolactone, pyrrolidone, valerolactam or caprolactam.
Claim 4
Dependent Claim
11 words
The procedure according to claim 1 for detecting human chorionic gonadotropin.
Claim 5
Dependent Claim
54 words
A latex agglutination procedure for detecting or determining a participant in an antigen-antibody reaction using the corresponding participant, which procedure comprises allowing the participants to react together in the presence of a mixture of compounds of the formula I ##STR3## in which X is O or NH and n is an integer from 2-9.
Claim 6
Dependent Claim
54 words
A latex agglutination procedure for detecting or determining a participant in an antigen-antibody reaction using the corresponding participant, which procedure comprises allowing the participants to react together in the presence of a mixture of compounds of the formula I ##STR3## in which X is O or NH and n is an integer from 2-9.
Claim 7
Dependent Claim
25 words
The procedure as claimed in claim 4, wherein said mixture comprises compounds selected from the group consisting of butyrolactone, valerolactone, caprolactone, pyrrolidone, valerolactam, and caprolactam.
Claim 8
Dependent Claim
14 words
The procedure as claimed in claim 4, wherein said mixture comprises butyrolactone and pyrrolidone.
Claim 9
Dependent Claim
14 words
The procedure as claimed in claim 4, wherein said mixture comprises pyrrolidone and caprolactam.
Claim 10
Dependent Claim
11 words
The procedure according to claim 4 for detecting human chorionic gonadotropin.
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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) | 1989-07-14 | 1990-01-13 | 1990-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-14 | 1994-01-13 | 1994-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-14 | 1998-01-13 | 1998-07-15 | $7700.00 | Window Closed / Lapsed |