Granted Patent
Utility
US 4,231,637 · App. 06/023,052
Seven-component microscope objective
Inventor:
Milton H. Sussman
Patented Case
View Patent ↗
Granted: Nov 4, 1980
Filed: Mar 22, 1979
Inventor
Milton H. Sussman
Assignee (at issue)
American Optical Corporation
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.