Granted Patent
Utility
US 6,048,491 · App. 09/194,431
Steel alloy, steel product and use thereof
Inventors:
Lars-Ake Norstrom, Henrik Jesperson
Patented Case
View Patent ↗
Granted: Apr 11, 2000
Filed: Nov 30, 1998
Inventors
Lars-Ake Norstrom
Henrik Jesperson
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.