Granted Patent
Utility
US 6,712,466 · App. 10/044,304
Eyeglass manufacturing method using variable index layer
Inventor:
Andreas W. Dreher
Patented Case
View Patent ↗
Granted: Mar 30, 2004
Filed: Oct 25, 2001
Inventor
Andreas W. Dreher
Assignee (at issue)
Ophthonix, 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.