Granted Patent
Utility
US 4,300,317 · App. 06/111,052
Method of fitting ophthalmic lenses in spectacles frames
Inventors:
George T. Croft, Rato R. Buhler
Patented Case
View Patent ↗
Granted: Nov 17, 1981
Filed: Jan 10, 1980
Inventors
George T. Croft
Rato R. Buhler
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.