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. 06, 2007
Filed:
Oct. 09, 2000
Per Olav Skjervold, Ås, NO;
Brit Salbu, Oslo, NO;
Petter Hieronymus Heyerdahl, Ås, NO;
Helge Lien, Levanger, NO;
Per Olav Skjervold, Ås, NO;
Brit Salbu, Oslo, NO;
Petter Hieronymus Heyerdahl, Ås, NO;
Helge Lien, Levanger, NO;
TimeTemp AS, Ås, NO;
Abstract
A full-history time-temperature indicator system which is capable of exhibiting a time-temperature dependent and visually detectable chemical reaction, useful for monitoring the time and temperature exposure of food products. The system comprises an immobilized reactant, such as Fe, and a mobile reactant, such as Fe(CN), initially contained in separate compartments, and separated by a sealing. The system is activated by removing a sealing between the compartments whereby the mobile reactant in a time-temperature dependent manner is brought into contact with the immobilized reactant resulting in a visually detectable reaction signal.