Disposable microtitration plate

• US 3,356,462 A
• Filed: 08/09/1966
• Issued: 12/05/1967
• Est. Priority Date: 08/09/1966
• Status: Expired due to Term

• Current Assignee: Nelson M. Cooke, Paul H. Hall
• Original Assignee: Nelson M. Cooke, Paul H. Hall
• Inventors: Cooke, Nelson M., Hall, Paul H.
• Application Number:
  US04/571,357
• Time in Patent Office: 483 Days
• US Class Current: 422/553
• CPC Class Codes: B01L 3/5085 for multiple samples, e.g. microtitration plates

Claims

1. A DISPOSABLE PLATE OF RMICROTITRATION AND LIKE PURPOSES COMPRISING A MOLDED, SYNTHETIC PLASTIC SHELL HAVING A PLANAR TOP WALL SUPPORTED BYA CONTINUOUS DEPENDING MARGINAL FLANGE AND HAVING A PLURALITY OF PARALLEL EQUAL LENGTH TRANSVERSELY ALIGNED ROWS OF UNIFORMLY ARRANGED, EQUAL DEPTH, OPEN TOP CUPS FORMED IN AND DEPENDING FROM SAID TOP WALL IN PARALLEL SPACED APART RELATION AND IN A UNIFORM PATTERN, AID CUPS HAVING ANNULAR SIDE WALLS THE INTERNAL SURFACES OF WHICH ARE CYLINDRICAL AND END WALLS THE INTERNAL SURFACES OF WHICH ARE SURFACES OF REVOLUTION, THE THICKNESS OF SAID END WALLS OF SAID CUPS BEING GREATER THAN THE THICKNESS OF SAID TOP WALL AND OF SAID SIDE WALLS OF SAID CUPS WHEREBY SAID CUP END WALLS ARE PROVIDED WITH INCREASED STRENGTH, SAID DEPENDING MARGINAL FLANGE BEING OF A HEIGHT SLIGHTLY GREATER THAN THAT OF THE DEPENDING CUPS WHEREBY CONTACT BETWEEN THE EXTERNAL SURFACES OF SAID CUP END WALLS AND A PLANAR WORK SURFACE SUPPORTING SUCH PLATE IS PRECLUDED SO LONG AS SAID PLANAR TOP WALL IS NOT DEFORMED.