Granted Patent
Utility
US 6,538,604 · App. 09/703,971
Planar antenna
Inventors:
Anne Isohätälä, Suvi Tarvas, Petteri Annamaa
Patented Case
View Patent ↗
Granted: Mar 25, 2003
Filed: Nov 1, 2000
Inventors
Anne Isohätälä
Suvi Tarvas
Petteri Annamaa
Assignee (at issue)
Filtronic LK Oy
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.