Granted Patent
Utility
US 6,558,486 · App. 09/889,081
Method of producing cold rolled steel strip
Inventors:
Lazar Strezov, Kannappar Mukunthan
Patented Case
View Patent ↗
Granted: May 6, 2003
Filed: Aug 31, 2001
Inventors
Lazar Strezov
Kannappar Mukunthan
Assignee (at issue)
Castrip, 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.