Granted Patent
Utility
US 5,319,630 · App. 07/812,808
Light-tight optical disk cartridge
Inventors:
Allen M. Earman, William R. Ziegler
Patented Case
View Patent ↗
Granted: Jun 7, 1994
Filed: Dec 24, 1991
Inventors
Allen M. Earman
William R. Ziegler
Assignee (at issue)
OPTEX 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.