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.

Date of Patent:
Jun. 07, 2005

Filed:

Nov. 12, 2002
Applicants:

Loong-tak Lim, Brampton, CA;

Michael E. Nicholas, Beeton, CA;

Harold Godwin, Caledon East, CA;

Inventors:

Loong-Tak Lim, Brampton, CA;

Michael E. Nicholas, Beeton, CA;

Harold Godwin, Caledon East, CA;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N031/22 ;
U.S. Cl.
CPC ...
Abstract

A test strip, methods for making and using the test strip, and a kit are described, which allow for the simple and efficient determination of the acetaldehyde content in a polyester polymer. The strip and methods have application, for example, in the manufacture of polyethylene terephthalate preforms and containers, where existing methods for testing for acetaldehyde are cumbersome and time consuming.


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