Granted Patent
Utility
US 5,142,934 · App. 07/580,581
Chain saw control
Inventors:
Magnus Persson, Hans Lindblad, Kenneth R. Skogward
Patented Case
View Patent ↗
Granted: Sep 1, 1992
Filed: Sep 11, 1990
Inventors
Magnus Persson
Hans Lindblad
Kenneth R. Skogward
Assignee (at issue)
Aktiebolaget Electrolux
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.