US4255412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
T3 Uptake test employing a precipitated nylon separating agent
Assignee: Beckman Coulter Inc
•
Filing: 1978-12-19
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Granted: 1981-03-10
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Expires: 1998-12-19
Abstract
Abstract An improved T 3 uptake test procedure characterized in that the separating agent employed therein comprises precipitated nylon 6, precipitated nylon 66, or mixtures thereof.
Inventors
- 👤 Anthony H. Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:34
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/74; G01N33/78; G01N33/53; G01N33/536; G01N33/537; Y; Y10; Y10S; Y10S436/00; Y10S436/804; Y10S436/807
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
77 words
An improved T 3 uptake test procedure of the type wherein: (a) a solution is contacted with labeled T 3 and a separating agent; (b) serum bound labeled T 3 and separating agent bound labeled T 3 are separated into two fractions; (c) at least one of said fractions is measured; wherein the improvement comprises contacting said solution with a separating agent selected from a group consisting of precipitated nylon 6, precipitated nylon 66, and mixtures thereof.
Claim 2
Dependent Claim
77 words
An improved T 3 uptake test procedure of the type wherein: (a) a solution is contacted with labeled T 3 and a separating agent; (b) serum bound labeled T 3 and separating agent bound labeled T 3 are separated into two fractions; (c) at least one of said fractions is measured; wherein the improvement comprises contacting said solution with a separating agent selected from a group consisting of precipitated nylon 6, precipitated nylon 66, and mixtures thereof.
Claim 3
Dependent Claim
13 words
The method of claim 1 wherein said separating agent is precipitated nylon 6.
Claim 4
Dependent Claim
13 words
The method of claim 1 wherein said separating agent is precipitated nylon 66.
Claim 5
Dependent Claim
13 words
The method of claim 1 wherein said separating agent is in powder form.
Claim 6
Dependent Claim
13 words
The method of claim 2 wherein said separating agent is in powder form.
Claim 7
Dependent Claim
13 words
The method of claim 3 wherein said separating agent is in powder form.
Claim 8
Dependent Claim
13 words
The method of claim 1 wherein said separating agent is in suspension form.
Claim 9
Dependent Claim
13 words
The method of claim 2 wherein said separating agent is in suspension form.
Claim 10
Dependent Claim
13 words
The method of claim 3 wherein said separating agent is in suspension form.
Claim 11
Dependent Claim
13 words
The method of claim 1 wherein said separating agent is in tablet form.
Claim 12
Dependent Claim
13 words
The method of claim 2 wherein said separating agent is in tablet form.
Claim 13
Dependent Claim
13 words
The method of claim 3 wherein said separating agent is in tablet form.
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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) | 1984-03-09 | 1984-09-08 | 1985-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-09 | 1988-09-08 | 1989-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-09 | 1992-09-08 | 1993-03-10 | $7700.00 | Window Closed / Lapsed |