Granted Patent
Utility
US 6,049,986 · App. 08/944,933
Chain saw guide bar equipped with chain tensioner
Inventors:
Eugene E. Calkins, Kent L. Huntington, Mark D. Lamey
Patented Case
View Patent ↗
Granted: Apr 18, 2000
Filed: Oct 2, 1997
Inventors
Eugene E. Calkins
Kent L. Huntington
Mark D. Lamey
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.