Granted Patent
Utility
US 6,643,347 · App. 10/025,583
Clock signal generation apparatus
Inventor:
Takeo Ohishi
Patented Case
View Patent ↗
Granted: Nov 4, 2003
Filed: Dec 26, 2001
Inventor
Takeo Ohishi
Assignee (at issue)
Victor Company
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.