Granted Patent
Utility
US 5,717,249 · App. 08/627,656
RF power amplifying circuit device
Inventors:
Noriyuki Yoshikawa, Kazuki Tateoka, Akihisa Sugimura, Kunihiko Kanazawa
Patented Case
View Patent ↗
Granted: Feb 10, 1998
Filed: Apr 4, 1996
Inventors
Noriyuki Yoshikawa
Kazuki Tateoka
Akihisa Sugimura
Kunihiko Kanazawa
Assignee (at issue)
Matsushita Electronics Corporation
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.