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:
May. 25, 1999
Filed:
Aug. 04, 1997
Applicant:
Inventors:
Dennis D Blevins, Laguna Hills, CA (US);
Stephen K Schultheis, Laguna Hills, CA (US);
Assignee:
Ansys, Inc., Irvine, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01L / ;
U.S. Cl.
CPC ...
422102 ; 422104 ; 436180 ; 436809 ;
Abstract
A solid phase extraction plate includes a unitary tray having a plurality of spaced-apart discrete upstanding chambers molded therein with each chamber having a top opening and a bottom nozzle with downwardly tapering sidewalls extending between the top opening and the bottom nozzle. A plurality of solid phase extraction disks are provided and one secured in each of the plurality of chambers without the use of frits or retainer rings utilizing instead tapered sidewalls of the chamber for enabling a press fit of the disks therein.