Granted Patent
Utility
US 4,283,139 · App. 06/118,274
Instrument for optically measuring soft contact lens parameters
Inventor:
C. Hermas Swope
Patented Case
View Patent ↗
Granted: Aug 11, 1981
Filed: Feb 4, 1980
Inventor
C. Hermas Swope
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.