Granted Patent
Utility
US 4,920,649 · App. 07/311,723
Arrangement in a chain saw
Inventors:
Hans Strom, Ulf Petersson
Patented Case
View Patent ↗
Granted: May 1, 1990
Filed: Feb 16, 1989
Inventors
Hans Strom
Ulf Petersson
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.