Granted Patent
Utility
US 6,284,161 · App. 08/143,373
Colored contact lenses and method of making same
Inventors:
Ashok R. Thakrar, Bradley K. Overmyer
Patented Case
View Patent ↗
Granted: Sep 4, 2001
Filed: Oct 26, 1993
Inventors
Ashok R. Thakrar
Bradley K. Overmyer
Assignee (at issue)
PBH, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.