Granted Patent
Utility
US 6,255,917 · App. 09/228,378
Filter with stepped impedance resonators and method of making the filter
Inventor:
Richard D. Scott
Patented Case
View Patent ↗
Granted: Jul 3, 2001
Filed: Jan 12, 1999
Inventor
Richard D. Scott
Assignee (at issue)
TELEDYNE TECHNOLOGIES INCORPORATED
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.