Granted Patent
Utility
US 5,610,892 · App. 08/365,629
Shutter for preventing double insertion and disc player having the same
Inventor:
Youngsuk Choi
Patented Case
View Patent ↗
Granted: Mar 11, 1997
Filed: Dec 28, 1994
Inventor
Youngsuk Choi
Assignee (at issue)
Daewoo Electronics 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.