Invention Grant
- Patent Title: Apparatus with timed color change indication
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Application No.: US14847182Application Date: 2015-09-08
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Publication No.: US09752902B2Publication Date: 2017-09-05
- Inventor: Gregory Lee Heacock , Louise Ellen Culham
- Applicant: Sensor International, LLC
- Applicant Address: US WA Maple Valley
- Assignee: Sensor International LLC
- Current Assignee: Sensor International LLC
- Current Assignee Address: US WA Maple Valley
- Agency: McAndrews, Held and Malloy
- Main IPC: G02C7/00
- IPC: G02C7/00 ; G02C7/02 ; G02C7/04 ; G01D7/00 ; A61B17/3211 ; G02C7/10 ; A61B90/92 ; A61B3/16 ; A61M5/31 ; A61M5/50 ; A61M5/00 ; A61B90/00
Abstract:
A disposable ophthalmic or medical apparatus 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 apparatus should no longer be used.
Public/Granted literature
- US20150377657A1 DISPOSABLE OPHTHALMIC/MEDICAL APPARATUS WITH TIMED COLOR CHANGE INDICATION Public/Granted day:2015-12-31
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