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:
Nov. 13, 2007
Filed:
Mar. 07, 2003
Chan U. Ko, Arcadia, CA (US);
Eung Lee, Mentor, OH (US);
Donald E. Banks, Huntington Beach, CA (US);
Jerry G. Hodsdon, Forestdale, MA (US);
Jesse C. Ercillo, Covina, CA (US);
Chan U. Ko, Arcadia, CA (US);
Eung Lee, Mentor, OH (US);
Donald E. Banks, Huntington Beach, CA (US);
Jerry G. Hodsdon, Forestdale, MA (US);
Jesse C. Ercillo, Covina, CA (US);
Avery Dennison Corporation, Pasadena, CA (US);
Abstract
The present invention relates to the present invention relates to a time indicating label comprising (a) a label substrate having a first and second surface, (b) an acid-base indicator composition, and (c) an activator composition, wherein one of (b) or (c) are on the first surface of the substrate and wherein (b) and (c) when brought in contact remain adhered. The label may have a pressure sensitive adhesive on the second surface of the label. The invention further relates to a method of using the time-temperature indicating label. The labels provide an effective means for determine the safety of frozen foods. The labels also provide a means of providing security by providing name badges that are time sensitive and may not be reused. The name badges provide a means to monitor the length of a visitor's time and prevents reusing the name badge.