US4504579A
Expired / Lapsed
US
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Stabilized peroxidase compositions
Assignee: Abbott Laboratories
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Filing: 1982-11-08
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Granted: 1985-03-12
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Expires: 2002-11-08
Abstract
Abstract Novel stable peroxidase compositions are disclosed which are useful as reagents in enzyme immunoassay procedures. In particular the novel peroxidase compositions contain a stabilizer selected from the group consisting of gentamicin, amikacin and tobramycin.
Inventors
- 👤 Ming Sun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:37
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/53; G01N33/531; G01N33/532; G01N33/535; C; C12; C12N; C12N9/00; C12N9/96; C12Q; C12Q1/00; C12Q1/26; C12Q1/28
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
30 words
A reagent composition for use in enzyme immunoassay techniques comprising a peroxidase conjugate and an effective amount of a stabilizer selected from the group consisting of gentamicin, amikacin and tobramycin.
Claim 2
Dependent Claim
30 words
A reagent composition for use in enzyme immunoassay techniques comprising a peroxidase conjugate and an effective amount of a stabilizer selected from the group consisting of gentamicin, amikacin and tobramycin.
Claim 3
Dependent Claim
12 words
A reagent composition according to claim 1 wherein the stabilizer is gentamicin.
Claim 4
Dependent Claim
15 words
A reagent composition according to claim 2 wherein the stabilizer is a horseradish peroxidase conjugate.
Claim 5
Dependent Claim
21 words
A reagent composition as in any of claims 1-3 wherein the stabilizer is present in a concentration greater than 0.005% (weight/volume).
Claim 6
Dependent Claim
17 words
A reagent composition as in any of claims 1-3 wherein the stabilizing concentration is approximately 0.1% (weight/volume).
References Cited (Backward Citations)
US4220722A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-03-11 | 1988-09-10 | 1989-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-11 | 1992-09-10 | 1993-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-11 | 1996-09-10 | 1997-03-12 | $7700.00 | Window Closed / Lapsed |