Granted Patent
Utility
US 5,801,822 · App. 08/796,740
Ophthalmic lens inspection system
Inventors:
W. Michael Lafferty, Charles S. Slemon, W. James Frandsen
Patented Case
View Patent ↗
Granted: Sep 1, 1998
Filed: Feb 6, 1997
Inventors
W. Michael Lafferty
Charles S. Slemon
W. James Frandsen
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.