Granted Patent
Utility
US 6,520,283 · App. 09/896,217
Mechanical signal filter
Inventor:
Zoltan Kemeny
Patented Case
View Patent ↗
Granted: Feb 18, 2003
Filed: Jun 29, 2001
Inventor
Zoltan Kemeny
Assignee (at issue)
Vistek 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.