发明授权
- 专利标题: Apparatus with timed color change indication
- 专利标题(中): 具有定时颜色变化指示的设备
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申请号: US13780050申请日: 2013-02-28
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公开(公告)号: US09134285B2公开(公告)日: 2015-09-15
- 发明人: Gregory Lee Heacock , Louise Ellen Culham
- 申请人: SENSOR MEDICAL TECHNOLOGY LLC
- 申请人地址: US WA Maple Valley
- 专利权人: SENSOR INTERNATIONAL, LLC
- 当前专利权人: SENSOR INTERNATIONAL, LLC
- 当前专利权人地址: US WA Maple Valley
- 代理机构: McAndrews, Held & Malloy Ltd.
- 主分类号: G02C7/00
- IPC分类号: G02C7/00 ; G01N31/22 ; A61B17/3211 ; G02C7/04 ; G02C7/10 ; A61B3/16 ; A61M5/31 ; A61M5/50 ; G01D7/00 ; A61B19/00 ; A61M5/00 ; A61B1/00
摘要:
An apparatus with time controlled color change indication comprises an apparatus includes a disposable, limited or restricted use product and an oxygen sensing color changeable dye disposed on a portion of the apparatus, the dye being translucent or having a first color upon application and for a defined time thereafter and the dye changing color after exposure to oxygen for the defined time. For example, a packaging for containing a product for human consumption has a portion with a color changeable dye disposed thereon. The dye changes color after being exposed to oxygen for a controlled and predetermined period of time indicating that the product for human consumption should no longer be consume or has decreased in freshness, quality of taste or potency.
公开/授权文献
- US20130269592A1 APPARATUS WITH TIMED COLOR CHANGE INDICATION 公开/授权日:2013-10-17
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