Granted Patent
Utility
US 5,628,057 · App. 08/611,268
Multi-port radio frequency signal transformation network
Inventors:
James P. Phillips, Eric L. Krenz
Patented Case
View Patent ↗
Granted: May 6, 1997
Filed: Mar 5, 1996
Inventors
James P. Phillips
Eric L. Krenz
Assignee (at issue)
Motorola, 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.