Granted Patent
Utility
US 6,403,954 · App. 09/456,786
Linear filter
Inventor:
Arthur E. Carlson
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Dec 8, 1999
Inventor
Arthur E. Carlson
Assignee (at issue)
Archimedes Technology Group, 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.