Granted Patent
Utility
US 5,772,141 · App. 08/848,201
Tape tension controlling/adjusting device for use in a video cassette recorder
Inventor:
Seong-Ick Ahn
Patented Case
View Patent ↗
Granted: Jun 30, 1998
Filed: Apr 29, 1997
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.