US5273718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for carrying out biochemical reactions
Assignee: Global Life Sciences Solutions USA LLC
•
Filing: 1991-08-07
•
Granted: 1993-12-28
•
Expires: 2011-08-07
Abstract
Abstract An apparatus for carrying out biochemical reactions in microtiter plates includes a device (42, 43) for receiving and holding microtiter plate (44) to be processed, the microtiter plate being provided with a plurality of wells and each well having a bottom outlet, and a movably mounted device (47) for the application of gas pressure to the wells of the microtiter plate (44), the pressure device including a sealing collar (48) and being movable between a position where it leaves the upper part of the microtiter plate accessible, and a position where it sealingly contacts the microtiter plate through the sealing collar (48) so that a gas pressure may be applied to the inlets of the microtiter plate wells for pressing out liquid present therein through the bottom outlet of each well.
Inventors
- 👤 Sven-Erik Skold
- 👤 Kent Andersson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:18
CPC Classifications
G; G01; G01N; G01N35/00; G01N35/10; G01N35/1065; B; B01; B01J; B01J19/00; B01J19/0046; B01L; B01L3/00; B01L3/50; B01L3/502; B01L3/5025; B01L3/50255; B01L3/508; B01L3/5085; B01L3/50853; B01L9/00; B01L9/52; B01L9/523; B01J2219/00; B01J2219/00274; B01J2219/00277; B01J2219/00279; B01J2219/00306; B01J2219/00313; B01J2219/00315; B01J2219/00319; B01J2219/00351; B01J2219/00414; B01J2219/00418; B01J2219/00423; B01J2219/00497; B01J2219/00583; B01J2219/00585; B01J2219/00596; B01J2219/00718; B01J2219/0072; B01J2219/00722; B01L2300/00; B01L2300/08; B01L2300/0809; B01L2300/0829; C; C40; C40B; C40B40/00; C40B40/04; C40B40/06; C40B60/00; C40B60/14; G01N2035/00178; G01N2035/00237; G01N2035/00465; G01N2035/00524; G01N2035/1027; G01N2035/1034; Y; Y10; Y10S; Y10S436/00; Y10S436/807; Y10S436/809
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
186 words
An apparatus for carrying out biochemical reactions in microtiter plates which comprises (a) a holder (42, 43) for receiving and holding a microtiter plate (35; 44) that is provided with a plurality of separate wells, each well having an inlet opening and a bottom outlet to expel liquid in the wells, and (b) a movably mounted device (5; 47) for applying gas pressure to the wells of said microtiter plate (35; 44), said gas pressure application device (5; 47) comprising a plate member (12) of at least the same length and width as said microtiter plate (35; 44), said plate member (12) having an inflatable collar (31; 48) of an elastic material around the periphery facing the periphery of said microtiter plate and being adapted to sealingly connect the gas pressure application device (5; 47) over the microtiter plate so as to thereby form a single gas application space (34; 50) defined by the microtiter plate (35; 44), the inflatable collar (31; 48) and the plate member (12; 47), whereby the same pressure will be quickly and simultaneously applied to the inlet openings of all wells.
Claim 2
Independent Claim
186 words
An apparatus for carrying out biochemical reactions in microtiter plates which comprises (a) a holder (42, 43) for receiving and holding a microtiter plate (35; 44) that is provided with a plurality of separate wells, each well having an inlet opening and a bottom outlet to expel liquid in the wells, and (b) a movably mounted device (5; 47) for applying gas pressure to the wells of said microtiter plate (35; 44), said gas pressure application device (5; 47) comprising a plate member (12) of at least the same length and width as said microtiter plate (35; 44), said plate member (12) having an inflatable collar (31; 48) of an elastic material around the periphery facing the periphery of said microtiter plate and being adapted to sealingly connect the gas pressure application device (5; 47) over the microtiter plate so as to thereby form a single gas application space (34; 50) defined by the microtiter plate (35; 44), the inflatable collar (31; 48) and the plate member (12; 47), whereby the same pressure will be quickly and simultaneously applied to the inlet openings of all wells.
References Cited (Backward Citations)
US4304865A
Cited
US4246339A
Cited
US4642220A
Cited
US4493815A
Cited
US4681742A
Cited
US4931402A
Cited
US5108703A
Cited
US4777021A
Cited
US4895706A
Cited
US4931400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-12-27 | 1997-06-28 | 1997-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-12-27 | 2001-06-28 | 2001-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-12-27 | 2005-06-28 | 2005-12-28 | $7700.00 | Window Closed / Lapsed |