Granted Patent
Utility
US 6,587,018 · App. 09/865,972
Notch filter and method
Inventors:
Ronald A. Meck, Earl W. McCune, Jr., Edwin R. Twitchell
Patented Case
View Patent ↗
Granted: Jul 1, 2003
Filed: May 25, 2001
Inventors
Ronald A. Meck
Earl W. McCune, Jr.
Edwin R. Twitchell
Assignee (at issue)
Tropian, 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.