Granted Patent
Utility
US 4,583,387 · App. 06/660,091
Apparatus for thermomechanically rolling hot strip product to a controlled microstructure
Inventors:
John E. Thomas, Ronald D. Gretz, George W. Tippins
Patented Case
View Patent ↗
Granted: Apr 22, 1986
Filed: Oct 12, 1984
Inventors
John E. Thomas
Ronald D. Gretz
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.