Granted Patent
Utility
US 6,641,681 · App. 10/049,432
Steel material and its manufacture
Inventors:
Odd Sandberg, Bo Rydell
Patented Case
View Patent ↗
Granted: Nov 4, 2003
Filed: Feb 12, 2002
Inventors
Odd Sandberg
Bo Rydell
Assignee (at issue)
Uddeholm Tooling Aktiebolag
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.