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:
Oct. 20, 2015
Filed:
Mar. 12, 2013
Applicant:
Sensor Medical Technology Llc, Maple Valley, 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); G01D 7/00 (2006.01); A61B 17/3211 (2006.01); G02C 7/04 (2006.01); G02C 7/10 (2006.01); A61B 3/16 (2006.01); A61B 19/00 (2006.01); A61M 5/31 (2006.01); A61M 5/50 (2006.01); A61M 5/00 (2006.01);
U.S. Cl.
CPC ...
G01D 7/005 (2013.01); A61B 17/3211 (2013.01); 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 2019/444 (2013.01); A61B 2019/4836 (2013.01); A61B 2019/4873 (2013.01); 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.