Granted Patent
Utility
US 5,974,673 · App. 08/973,974
Nose sprocket for chain saw guide bars
Inventor:
Erik Sundstrom
Patented Case
View Patent ↗
Granted: Nov 2, 1999
Filed: Jul 6, 1998
Inventor
Erik Sundstrom
Assignee (at issue)
SANDVIK AB
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.