Granted Patent
Utility
US 6,223,640 · App. 09/104,369
Saw chain having side links with lubricant-receiving recesses
Inventor:
Erik Sundstrom
Patented Case
View Patent ↗
Granted: May 1, 2001
Filed: Jun 25, 1998
Inventor
Erik Sundstrom
Assignee (at issue)
SANDVIK LTD
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.