Granted Patent
Utility
US 5,651,938 · App. 08/431,438
High strength steel composition having enhanced low temperature toughness
Inventors:
Iain A. Thomson, Larry G. Ward, James Peck, Dwayne E. Lewis
Patented Case
View Patent ↗
Granted: Jul 29, 1997
Filed: May 1, 1995
Inventors
Iain A. Thomson
Larry G. Ward
James Peck
Dwayne E. Lewis
Assignee (at issue)
Blount, Inc.
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.