Granted Patent
Utility
US 5,961,752 · App. 08/935,557
High strength Mg-Si type aluminum alloy
Inventor:
S. Craig Bergsma
Patented Case
View Patent ↗
Granted: Oct 5, 1999
Filed: Sep 23, 1997
Inventor
S. Craig Bergsma
Assignee (at issue)
Northwest Aluminum Company
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.