US5041266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tray for immunometric determinations
Assignee: Roche Diabetes Care Inc
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Filing: 1989-12-21
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Granted: 1991-08-20
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Expires: 2009-12-21
Abstract
Abstract A microtiter plate containing a plurality of reaction wells for conducting immunogenic reactions wherein the bottom wall of the reaction well has an inner surface which is substantially hydrophilic, and the side wall of the reaction well has an inner surface which is substantially hydrophobic and a process for producing said trays.
Inventors
- 👤 William A. Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:19
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/53; G01N33/5302; G01N33/5304; B; B01; B01L; B01L3/00; B01L3/50; B01L3/508; B01L3/5085; B01L3/50853; B01L2300/00; B01L2300/08; B01L2300/0809; B01L2300/0819; B01L2300/16; B01L2300/161; B01L2300/165; B01L3/02; B01L3/0241; B01L3/0244; G01N35/00; G01N35/00029; G01N2035/00168; G01N33/569; G01N33/56966; G01N33/56977; Y; Y10; Y10S; Y10S422/00; Y10S422/906; Y10S422/907
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
90 words
A tray for conducting immunogenic reactions for analyzing biological fluid samples comprising a plate member having top and bottom surfaces with the top surface of said plate member defining a plurality of spaced-apart wells configured and adapted to receive and hold the biological fluid for conducting the immunogenic reaction, said wells having a side and bottom walls with inner surfaces, the inner surfaces of said wells being adapted to retain said fluid, said inner surface of side wall being hydrophobic and said inner surface of said bottom wall being hydrophilic.
Claim 2
Dependent Claim
90 words
A tray for conducting immunogenic reactions for analyzing biological fluid samples comprising a plate member having top and bottom surfaces with the top surface of said plate member defining a plurality of spaced-apart wells configured and adapted to receive and hold the biological fluid for conducting the immunogenic reaction, said wells having a side and bottom walls with inner surfaces, the inner surfaces of said wells being adapted to retain said fluid, said inner surface of side wall being hydrophobic and said inner surface of said bottom wall being hydrophilic.
Claim 3
Dependent Claim
43 words
The tray of claim 1 wherein the bottom walls of the respective wells define a surface area, and said wells include an upper rim on said top surface which define a surface area greater than the surface area defined by said bottom walls.
References Cited (Backward Citations)
US4314026A
Cited
US4770856A
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US4468371A
Cited
US4599315A
Cited
US4628026A
Cited
US4735778A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-08-19 | 1995-02-18 | 1995-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-19 | 1999-02-18 | 1999-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-19 | 2003-02-18 | 2003-08-20 | $7700.00 | Window Closed / Lapsed |