Granted Patent
Utility
US 5,587,939 · App. 08/608,940
Half-band filter for a cellular group demultiplexer
Inventors:
Mohammad Soleymani, Yousef Shayan
Patented Case
View Patent ↗
Granted: Dec 24, 1996
Filed: Feb 29, 1996
Inventors
Mohammad Soleymani
Yousef Shayan
Assignee (at issue)
Spar Aerospace Limited
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.