Granted Patent
Utility
US 5,616,539 · App. 08/297,289
High temperature superconductor lumped element band-reject filters
Inventors:
Gregory L. Hey-Shipton, Stephan M. Rohlfing, George L. Matthaei, Roger J. Forse
Patented Case
View Patent ↗
Granted: Apr 1, 1997
Filed: Aug 26, 1994
Inventors
Gregory L. Hey-Shipton
Stephan M. Rohlfing
George L. Matthaei
Roger J. Forse
Assignee (at issue)
Superconductor Technologies 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.