Patent US3932141A successfully refreshed from Google Patents.
US3932141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for determining immunoassays of antigens and their antibodies
Assignee: Abbott Laboratories
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Filing: 1974-07-10
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Granted: 1976-01-13
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Expires: 1994-07-10
Abstract
Abstract A test apparatus for the determination of immunoassays of antigens and their antibodies which comprises a receptacle tray having a plurality of wells for receiving and samples, a holder for receiving and holding balls, coated with an immunologic composition and for depositing the balls into the wells of said receptacle tray, a ball-release piece fitting over one end of the holder, the ball-release piece being arranged to release the balls from the holder when pressed, and a cap to fit on the open end of the ball-release piece.
Inventors
- 👤 Glenn Lee Beall
- 👤 John Dennis Dodge
- 👤 Robert Francis Koschalk
- 👤 Emil Henry Soika
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:32
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/53; G01N33/543; G01N33/54366; G01N33/544; G01N33/545; B; B01; B01J; B01J2219/00; B01J2219/00274; B01J2219/00277; B01J2219/00457; B01J2219/00459; B01J2219/00468; G01N35/00; G01N2035/00465; G01N2035/00564; G01N2035/00574; Y; Y10; Y10S; Y10S436/00; Y10S436/804; Y10S436/807; Y10S436/809; Y10S436/82; Y10T; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24661; Y10T428/29; Y10T428/2982; Y10T428/2991
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
102 words
A test apparatus for use in a direct radioimmunoassay for antigens or antibodies comprising: a receptacle tray having a plurality of wells for receiving samples; balls coated with an immunologic composition; a ball holder having a first end and a second end, said holder arranged to receive and hold said coated balls and to deposit the balls into said wells of said receptacle tray; and a ball-release piece arranged to fit over the first end of said ball holder, said ball-release piece having an opening arranged to release said balls therefrom when said ball-release piece is pressed on its extended exterior surface.
Claim 2
Dependent Claim
102 words
A test apparatus for use in a direct radioimmunoassay for antigens or antibodies comprising: a receptacle tray having a plurality of wells for receiving samples; balls coated with an immunologic composition; a ball holder having a first end and a second end, said holder arranged to receive and hold said coated balls and to deposit the balls into said wells of said receptacle tray; and a ball-release piece arranged to fit over the first end of said ball holder, said ball-release piece having an opening arranged to release said balls therefrom when said ball-release piece is pressed on its extended exterior surface.
Claim 3
Dependent Claim
21 words
A test apparatus according to claim 1, wherein a cap is provided to fit over the opening of said ball-release piece.
Claim 4
Dependent Claim
23 words
A test apparatus according to claim 1, wherein said receptacle tray has a series of wells arranged in rows parallel to each other.
Claim 5
Dependent Claim
20 words
A test apparatus according to claim 1, wherein said ball holder is a hollow tube with a closed second end.
Claim 6
Dependent Claim
31 words
A test apparatus according to claim 1, wherein said ball-release piece has a beveled open end with a series of nibs spaced along the inner circumferential edge of said beveled opening.
Claim 7
Dependent Claim
26 words
A test apparatus according to claim 5, wherein said ball-release piece has a flange portion arranged to fit snugly over one end of said ball holder.
Claim 8
Dependent Claim
37 words
A test apparatus according to claim 5 wherein said nibs of said ball-release piece are arranged to release one of said coated balls when said ball-release piece is pressed on its extended exterior surface at said opening.
Claim 9
Dependent Claim
14 words
A test apparatus according to claim 1 wherein said wells are hemispherical in shape.
Claim 10
Dependent Claim
13 words
A test apparatus according to claim 1 wherein said balls are polystyrene balls.
Claim 11
Dependent Claim
41 words
A test apparatus according to claim 1 wherein said wells are contoured to provide coverage of one of said coated balls with a minimum of a blood sample and to prevent the entrapment of air between said ball and the well.
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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) | 1979-01-12 | 1979-07-14 | 1980-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-12 | 1983-07-14 | 1984-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-12 | 1987-07-14 | 1988-01-13 | $7700.00 | Window Closed / Lapsed |