Granted Patent
Utility
US 6,328,446 · App. 09/425,517
Production of optical elements
Inventors:
Sujal Bhalakia, Thomas J. Moravec
Patented Case
View Patent ↗
Granted: Dec 11, 2001
Filed: Oct 22, 1999
Inventors
Sujal Bhalakia
Thomas J. Moravec
Assignee (at issue)
Vision-Ease Lens
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.