Granted Patent
Utility
US 4,632,055 · App. 06/715,095
Apparatus for tinting soft contact lenses
Inventors:
Francis E. Ryder, Fred E. Williams, Jr.
Patented Case
View Patent ↗
Granted: Dec 30, 1986
Filed: Mar 22, 1985
Inventors
Francis E. Ryder
Fred E. Williams, Jr.
Assignees (at issue)
RYDER INTERNATIONAL CO., LTD.
National Patent Development 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.