Granted Patent
Utility
US 4,308,739 · App. 06/115,611
Method for modernizing a hot strip mill
Inventor:
George W. Tippins
Patented Case
View Patent ↗
Granted: Jan 5, 1982
Filed: Jan 28, 1980
Inventor
George W. Tippins
Assignee (at issue)
Tippins Machinery Co., 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.