Granted Patent
Utility
US 6,576,068 · App. 09/841,330
Method of producing stainless steels having improved corrosion resistance
Inventors:
John F. Grubb, James D. Fritz
Patented Case
View Patent ↗
Granted: Jun 10, 2003
Filed: Apr 24, 2001
Inventors
John F. Grubb
James D. Fritz
Assignee (at issue)
ATI PROPERTIES LLC
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.