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:
Sep. 05, 2017
Filed:
Sep. 08, 2015
Applicant:
Sensor International, Llc, Snoqualmie, WA (US);
Inventors:
Gregory Lee Heacock, Maple Valley, WA (US);
Louise Ellen Culham, Maple Valley, WA (US);
Assignee:
Sensor International LLC, Maple Valley, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02C 7/00 (2006.01); G02C 7/02 (2006.01); G02C 7/04 (2006.01); G01D 7/00 (2006.01); A61B 17/3211 (2006.01); G02C 7/10 (2006.01); A61B 90/92 (2016.01); A61B 3/16 (2006.01); A61M 5/31 (2006.01); A61M 5/50 (2006.01); A61M 5/00 (2006.01); A61B 90/00 (2016.01);
U.S. Cl.
CPC ...
G01D 7/005 (2013.01); A61B 17/3211 (2013.01); A61B 90/92 (2016.02); G02C 7/04 (2013.01); G02C 7/049 (2013.01); G02C 7/104 (2013.01); G02C 7/108 (2013.01); A61B 3/16 (2013.01); A61B 2090/0807 (2016.02); A61B 2090/0814 (2016.02); A61M 5/002 (2013.01); A61M 5/3129 (2013.01); A61M 5/5086 (2013.01); A61M 2205/583 (2013.01);
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.