Granted Patent
Utility
US 6,427,342 · App. 09/650,426
Lightweight chain saw bar
Inventors:
Robert H. Breitbarth, David Scott Penrose
Patented Case
View Patent ↗
Granted: Aug 6, 2002
Filed: Aug 29, 2000
Inventors
Robert H. Breitbarth
David Scott Penrose
Assignee (at issue)
Blount, Inc.
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.