Granted Patent
Utility
US 6,509,874 · App. 09/905,245
Reactive matching for waveguide-slot-microstrip transitions
Inventors:
Frank Kolak, Eswarappa Channabasappa
Patented Case
View Patent ↗
Granted: Jan 21, 2003
Filed: Jul 13, 2001
Inventors
Frank Kolak
Eswarappa Channabasappa
Assignee (at issue)
Tyco Electronics Co., Ltd
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.