Granted Patent
Utility
US 6,636,141 · App. 09/903,403
Controllable electronic switch
Inventor:
Jeffrey Ying
Patented Case
View Patent ↗
Granted: Oct 21, 2003
Filed: Jul 10, 2001
Inventor
Jeffrey Ying
Assignee (at issue)
Yingco Electronic Inc.
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.