Granted Patent
Utility
US 5,266,977 · App. 07/729,057
Lens device and method
Inventor:
Harry A. Linden
Patented Case
View Patent ↗
Granted: Nov 30, 1993
Filed: Jul 12, 1991
Inventor
Harry A. Linden
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.