Granted Patent
Utility
US 6,546,771 · App. 09/868,500
Method for manufacturing of strips and rolling mill line
Inventor:
Sten Ljungars
Patented Case
View Patent ↗
Granted: Apr 15, 2003
Filed: Jul 10, 2001
Inventor
Sten Ljungars
Assignee (at issue)
Avestapolarit 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.