The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 31, 2001
Filed:
Sep. 16, 1997
Applicant:
Inventors:
John L. Staples, Florissant, MO (US);
William L. DiMieri, Pittsburgh, PA (US);
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
C12M 1/24 ; B01L 3/00 ;
U.S. Cl.
CPC ...
C12M 1/24 ; B01L 3/00 ;
Abstract
A test sample card is produced from a mold machined in accordance with an electronic discharge machining (EDM) process, with a resulting finely textured surface of the mold left intact. The mold produces a test sample card that has an even finely textured surface which improves the adhesion of a membrane to the card surface. The card is better able to withstand prolonged incubation periods without separation of the adhesive membrane from the card surface, as compared to prior art cards.