Granted Patent
Utility
US 4,277,102 · App. 06/039,758
Chair
Inventors:
Arne Aaras, Kjell M. Martinsen, Rikard Nakland
Patented Case
View Patent ↗
Granted: Jul 7, 1981
Filed: May 17, 1979
Inventors
Arne Aaras
Kjell M. Martinsen
Rikard Nakland
Assignee (at issue)
International Standard Electric 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.