Granted Patent
Utility
US 4,711,542 · App. 06/866,582
Ophthalmic disease detection apparatus
Inventors:
Tadashi Ichihashi, Koichiro Kakizawa, Masunori Kawamura
Patented Case
View Patent ↗
Granted: Dec 8, 1987
Filed: May 22, 1986
Inventors
Tadashi Ichihashi
Koichiro Kakizawa
Masunori Kawamura
Assignee (at issue)
KOWA COMPANY 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.