Biochemical test plate

• US 3,390,962 A
• Filed: 09/01/1965
• Issued: 07/02/1968
• Est. Priority Date: 09/01/1965
• Status: Expired due to Term

• Current Assignee: Goldsmith, Herbert
• Original Assignee: Goldsmith, Herbert
• Inventors: Goldsmith, Herbert
• Application Number:
  US04/484,401
• Time in Patent Office: 1,035 Days
• US Class Current: 422/401
• CPC Class Codes: G01N 33/558 using diffusion or migration of antigen or antibody immunochromatographic test strips G01N33/54387
• CPC Class Codes: Y10S 436/809 Multifield plates or multicontainer arrays

Claims

1. A BIOCHEMICAL TEST PLATE COMPRISING:

A PLANAR TEMPLATE CONTAINING AN ORDERED PLURALITY OF SPACED APART APERTURES THERETHROUGH, SAID TEMPLATE HAVING A CENTRAL BOSS ON THE UNDERSIDE THEREOF;

A MICROPOROUS FILM UNDERLYING SAID TEMPLATE AT THE CENTRAL BOSS THEREOF, AND ESSENTIALLY COEXTENSIVE WITH THE CENTRAL BOSS THEREON;

A RESILIENT PAD ESSENTIALLY COEXTENSIVE WITH THE MICROPOROUS FILM;

A BACK-UP PLATE CONTAINING A CENTRAL RECESS INTO WHICH SAID RESILIENT PAD AND SAID CENTRAL BOSS FIT, THE HEIGHT OF SAID PAD ABEING LESS THAN THE RECESS DEPTH;

AND ATTACHMENT MEANS ASSOCIATED WITH THE MARGINAL EDGE PORTIONS OF THE BACKUP PLATE SURROUNDING SAID RECESS AND WITH THE MARGINAL EDGE PORTIONS OF THE TEMPLATE SURROUND THE BOSS FOR SECURING TOGETHER THE TEST PLATE, THE MICROPOROUS FILM THEN BEING UNDER A SUBSTANTIALLY UNIFROM STATE OF STRESS.