Granted Patent
Utility
US 6,140,781 · App. 09/067,962
Control method and apparatus for driving a head drum assembly of a video cassette recorder
Inventor:
Man-Sheel Cheong
Patented Case
View Patent ↗
Granted: Oct 31, 2000
Filed: Apr 29, 1998
Inventor
Man-Sheel Cheong
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.