Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
May 22, 2007
0Patent Application Number
107484520
Date Filed
December 30, 2003
0Patent Primary Examiner
Patent abstract
A packaging system or storage arrangement that includes provision to indicate the presence of oxygen. An oxygen-sensitive material is placed inside a sealable container. Air is evacuated from the sealable container and the sealable container is sealed to isolate the oxygen-sensitive material from oxygen. The sealable container is then irradiated with an effective amount of radiation to activate the oxygen-sensitive material such that the oxygen-sensitive material will undergo a visual change in the presence of oxygen after the oxygen-sensitive material has been irradiated. The visual change provides an indication of the presence of oxygen inside the sealable container.
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