Granted Patent
Utility
US 6,732,813 · App. 10/111,235
Method and device of controlling a rock drilling machine
Inventor:
Ake T. Eklof
Patented Case
View Patent ↗
Granted: May 11, 2004
Filed: Apr 22, 2002
Inventor
Ake T. Eklof
Assignee (at issue)
Atlas Copco Rock Drills 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.