Granted Patent
Utility
US 4,873,424 · App. 07/221,283
Wall plug lens disinfector
Inventors:
Francis E. Ryder, Rowland W. Kanner, Fred E. Williams, Jr.
Patented Case
View Patent ↗
Granted: Oct 10, 1989
Filed: Jul 19, 1988
Inventors
Francis E. Ryder
Rowland W. Kanner
Fred E. Williams, Jr.
Assignee (at issue)
RYDER INTERNATIONAL CO., 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.