Granted Patent
Utility
US 5,500,778 · App. 08/306,905
Cassette lid pre-opening device
Inventor:
Seong-Ick Ahn
Patented Case
View Patent ↗
Granted: Mar 19, 1996
Filed: Sep 15, 1994
Inventor
Seong-Ick Ahn
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.