Granted Patent
Utility
US 6,072,570 · App. 09/116,295
Image quality mapper for progressive eyeglasses
Inventors:
Russell A. Chipman, Jonathan Drewes, James B. Hadaway
Patented Case
View Patent ↗
Granted: Jun 6, 2000
Filed: Jul 16, 1998
Inventors
Russell A. Chipman
Jonathan Drewes
James B. Hadaway
Assignee (at issue)
INNOTECH LTD.
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.