US4822565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carrier device for immunological assay
Assignee: Individual
•
Filing: 1985-03-11
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Granted: 1989-04-18
•
Expires: 2005-03-11
Abstract
Abstract A carrier coated with antibodies or antigens is proposed, which performs a serological reaction with human, animal or plant material to be investigated and which is received in a multi-well plate. The carrier is made from nitrocellulose or a material having the adsorption characteristics of nitrocellulose and its shape is adapted to the multi-well plate used for performing serological reactions and is introduced into the latter. A plastic reinforcing structure provides support for the coated carrier. The coated carrier is not completely bound to the plastic reinforcing structure, so that both sides of the carrier will be contacted by material in the multi-well plate.
Inventors
- 👤 Dora Kohler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:01
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/53; G01N33/543; G01N33/544; G01N33/548; G01N35/00; G01N35/10; G01N35/1065; Y; Y10; Y10S; Y10S436/00; Y10S436/807; Y10S436/809; Y10S436/81
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
177 words
A device adapted for use with a multi-well plate with individual wells for performing immunological assays, said device comprising (a) a holding member, (b) a flexible carrier and (c) a plastic reinforcing structure; said flexible carrier and said plastic reinforcing structure being attached to said holding member; said flexible carrier comprising a plurality of strips formed of nitrocellulose or nitrocellulose-like material having the absorption characteristics of nitrocellulose; said strips being arranged in comb-like, spaced fashion and being coated with antigens or antibodies and being capable of being immersed into individual wells of a multi-well plate; said plastic reinforcing structure comprising a plurality of strips arranged in a comb-like, spaced fashion and being capable of being immersed into individual wells of a multi-well plate; wherein each one of the plurality of flexible carrier strips is in a juxtaposed position relative to a plastic reinforcing strip but not completely bound thereto, so that both sides of the carrier strip will be contacted by the material in the wells and the plastic reinforcing strips will serve as a mechanical support.
Claim 2
Independent Claim
177 words
A device adapted for use with a multi-well plate with individual wells for performing immunological assays, said device comprising (a) a holding member, (b) a flexible carrier and (c) a plastic reinforcing structure; said flexible carrier and said plastic reinforcing structure being attached to said holding member; said flexible carrier comprising a plurality of strips formed of nitrocellulose or nitrocellulose-like material having the absorption characteristics of nitrocellulose; said strips being arranged in comb-like, spaced fashion and being coated with antigens or antibodies and being capable of being immersed into individual wells of a multi-well plate; said plastic reinforcing structure comprising a plurality of strips arranged in a comb-like, spaced fashion and being capable of being immersed into individual wells of a multi-well plate; wherein each one of the plurality of flexible carrier strips is in a juxtaposed position relative to a plastic reinforcing strip but not completely bound thereto, so that both sides of the carrier strip will be contacted by the material in the wells and the plastic reinforcing strips will serve as a mechanical support.
Claim 3
Dependent Claim
12 words
A device according to claim 1 wherein said flexible carrier is nitrocellulose.
References Cited (Backward Citations)
US3932141A
Cited
US3999948A
Cited
US4276259A
Cited
US4200613A
Cited
WO1982000058A1
Cited
US4331650A
Cited
GB2099578A
Cited
WO1983003677A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-04-17 | 1992-10-17 | 1993-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-17 | 1996-10-17 | 1997-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-17 | 2000-10-17 | 2001-04-18 | $7700.00 | Window Closed / Lapsed |